[syzbot] [usb?] WARNING in usbnet_start_xmit/usb_submit_urb (2)

37 views
Skip to first unread message

syzbot

unread,
Mar 17, 2024, 10:43:22 AM3/17/24
to da...@davemloft.net, edum...@google.com, ku...@kernel.org, linux-...@vger.kernel.org, linu...@vger.kernel.org, net...@vger.kernel.org, one...@suse.com, pab...@redhat.com, syzkall...@googlegroups.com
Hello,

syzbot found the following issue on:

HEAD commit: d99e42ce6b83 Merge tag 'usb-serial-6.9-rc1' of https://git..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
console output: https://syzkaller.appspot.com/x/log.txt?x=111aa901180000
kernel config: https://syzkaller.appspot.com/x/.config?x=dd8c589043bc2b49
dashboard link: https://syzkaller.appspot.com/bug?extid=d693c07c6f647e0388d3
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1248049e180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14bbf9fa180000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/69f01028417d/disk-d99e42ce.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/b4624715c637/vmlinux-d99e42ce.xz
kernel image: https://storage.googleapis.com/syzbot-assets/0a940dfca61e/bzImage-d99e42ce.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d693c0...@syzkaller.appspotmail.com

------------[ cut here ]------------
usb 3-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 1 PID: 2507 at drivers/usb/core/urb.c:503 usb_submit_urb+0xe47/0x1730 drivers/usb/core/urb.c:503
Modules linked in:
CPU: 1 PID: 2507 Comm: kworker/1:5 Not tainted 6.8.0-rc6-syzkaller-00189-gd99e42ce6b83 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: mld mld_ifc_work
RIP: 0010:usb_submit_urb+0xe47/0x1730 drivers/usb/core/urb.c:503
Code: 84 3c 02 00 00 e8 59 ba 43 fd 4c 89 ef e8 61 16 07 ff 45 89 e0 89 e9 4c 89 f2 48 89 c6 48 c7 c7 a0 37 f0 86 e8 0a 46 0d fd 90 <0f> 0b 90 90 e9 ed f8 ff ff e8 2b ba 43 fd 49 81 c4 b8 05 00 00 e9
RSP: 0018:ffffc9000157f308 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff8881123c3000 RCX: ffffffff81177339
RDX: ffff888115e8d700 RSI: ffffffff81177346 RDI: 0000000000000001
RBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: ffff888120fb00a8 R14: ffff888103eeb240 R15: ffff8881123c307c
FS: 0000000000000000(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4293372238 CR3: 00000001227c5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
usbnet_start_xmit+0x693/0x2440 drivers/net/usb/usbnet.c:1453
__netdev_start_xmit include/linux/netdevice.h:4989 [inline]
netdev_start_xmit include/linux/netdevice.h:5003 [inline]
xmit_one net/core/dev.c:3547 [inline]
dev_hard_start_xmit+0x137/0x6d0 net/core/dev.c:3563
sch_direct_xmit+0x18e/0x830 net/sched/sch_generic.c:342
__dev_xmit_skb net/core/dev.c:3776 [inline]
__dev_queue_xmit+0x12b2/0x3ed0 net/core/dev.c:4317
dev_queue_xmit include/linux/netdevice.h:3171 [inline]
neigh_resolve_output net/core/neighbour.c:1563 [inline]
neigh_resolve_output+0x582/0x8f0 net/core/neighbour.c:1543
neigh_output include/net/neighbour.h:542 [inline]
ip6_finish_output2+0xad9/0x22b0 net/ipv6/ip6_output.c:137
__ip6_finish_output+0x3a5/0xbc0 net/ipv6/ip6_output.c:211
ip6_finish_output net/ipv6/ip6_output.c:222 [inline]
NF_HOOK_COND include/linux/netfilter.h:303 [inline]
ip6_output+0x23a/0x8c0 net/ipv6/ip6_output.c:243
dst_output include/net/dst.h:451 [inline]
NF_HOOK.constprop.0+0xff/0x570 include/linux/netfilter.h:314
mld_sendpack+0x6e6/0xd10 net/ipv6/mcast.c:1818
mld_send_cr net/ipv6/mcast.c:2119 [inline]
mld_ifc_work+0x756/0xcd0 net/ipv6/mcast.c:2650
process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:243
</TASK>


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.

If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)

If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report

If you want to undo deduplication, reply with:
#syz undup

Nikita Zhandarovich

unread,
Apr 15, 2024, 10:41:08 AM4/15/24
to syzbot+d693c0...@syzkaller.appspotmail.com, Nikita Zhandarovich, syzkall...@googlegroups.com
Test if this issue wasn't a fluke.

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git fe46a7dd189e

syzbot

unread,
Apr 15, 2024, 11:03:05 AM4/15/24
to linux-...@vger.kernel.org, n.zhand...@fintech.ru, syzkall...@googlegroups.com
Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
WARNING in usbnet_start_xmit/usb_submit_urb

------------[ cut here ]------------
usb 2-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 0 PID: 726 at drivers/usb/core/urb.c:503 usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503
Modules linked in:
CPU: 0 PID: 726 Comm: kworker/0:2 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: mld mld_ifc_work
RIP: 0010:usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503
Code: 84 3c 02 00 00 e8 35 48 30 fd 4c 89 ef e8 1d 24 01 ff 45 89 e0 89 e9 4c 89 f2 48 89 c6 48 c7 c7 c0 49 30 87 e8 46 b1 f6 fc 90 <0f> 0b 90 90 e9 e9 f8 ff ff e8 07 48 30 fd 49 81 c4 b8 05 00 00 e9
RSP: 0000:ffffc90001bef2e0 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff8881026a1e00 RCX: ffffffff8118b029
RDX: ffff88810b350000 RSI: ffffffff8118b036 RDI: 0000000000000001
RBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000000000c R12: 0000000000000001
R13: ffff888101f760a8 R14: ffff888105ee9040 R15: ffff8881026a1e7c
FS: 0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f13260e9870 CR3: 000000010dbd0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
usbnet_start_xmit+0x696/0x2440 drivers/net/usb/usbnet.c:1453
__netdev_start_xmit include/linux/netdevice.h:4903 [inline]
netdev_start_xmit include/linux/netdevice.h:4917 [inline]
xmit_one net/core/dev.c:3531 [inline]
dev_hard_start_xmit+0x143/0x720 net/core/dev.c:3547
sch_direct_xmit+0x18e/0x840 net/sched/sch_generic.c:343
__dev_xmit_skb net/core/dev.c:3760 [inline]
__dev_queue_xmit+0x12c5/0x3ef0 net/core/dev.c:4301
dev_queue_xmit include/linux/netdevice.h:3091 [inline]
neigh_resolve_output net/core/neighbour.c:1563 [inline]
neigh_resolve_output+0x5ba/0x950 net/core/neighbour.c:1543
neigh_output include/net/neighbour.h:542 [inline]
ip6_finish_output2+0xad9/0x2300 net/ipv6/ip6_output.c:137
__ip6_finish_output+0x3d8/0xf10 net/ipv6/ip6_output.c:211
ip6_finish_output net/ipv6/ip6_output.c:222 [inline]
NF_HOOK_COND include/linux/netfilter.h:303 [inline]
ip6_output+0x23a/0x8c0 net/ipv6/ip6_output.c:243
dst_output include/net/dst.h:450 [inline]
NF_HOOK.constprop.0+0x118/0x8b0 include/linux/netfilter.h:314
mld_sendpack+0x6e6/0xd20 net/ipv6/mcast.c:1818
mld_send_cr net/ipv6/mcast.c:2119 [inline]
mld_ifc_work+0x756/0xce0 net/ipv6/mcast.c:2650
process_one_work+0x9a9/0x1a60 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
</TASK>


Tested on:

commit: fe46a7dd Merge tag 'sound-6.9-rc1' of git://git.kernel..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=15b90f43180000
kernel config: https://syzkaller.appspot.com/x/.config?x=811ce8e010ac6afc
dashboard link: https://syzkaller.appspot.com/bug?extid=d693c07c6f647e0388d3
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.

Nikita Zhandarovich

unread,
Feb 18, 2025, 11:29:34 AM2/18/25
to syzbot+d693c0...@syzkaller.appspotmail.com, Nikita Zhandarovich, syzkall...@googlegroups.com, linux-...@vger.kernel.org
Do basic endpoint verification via usbnet utilities in gl620a driver.

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
---
drivers/net/usb/gl620a.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/usb/gl620a.c b/drivers/net/usb/gl620a.c
index 46af78caf457..0bfa37c14059 100644
--- a/drivers/net/usb/gl620a.c
+++ b/drivers/net/usb/gl620a.c
@@ -179,9 +179,7 @@ static int genelink_bind(struct usbnet *dev, struct usb_interface *intf)
{
dev->hard_mtu = GL_RCV_BUF_SIZE;
dev->net->hard_header_len += 4;
- dev->in = usb_rcvbulkpipe(dev->udev, dev->driver_info->in);
- dev->out = usb_sndbulkpipe(dev->udev, dev->driver_info->out);
- return 0;
+ return usbnet_get_endpoints(dev, intf);
}

static const struct driver_info genelink_info = {

syzbot

unread,
Feb 18, 2025, 11:43:03 AM2/18/25
to linux-...@vger.kernel.org, n.zhand...@fintech.ru, syzkall...@googlegroups.com
Hello,

syzbot tried to test the proposed patch but the build/boot failed:

0000000000000000
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
info registers vcpu 2

CPU#2
RAX=000000000003b7ed RBX=0000000000000002 RCX=ffffffff8b4e4469 RDX=0000000000000000
RSI=ffffffff8b6ceca0 RDI=ffffffff8bd26900 RBP=ffffed1003a5f000 RSP=ffffc90000197e08
R8 =0000000000000001 R9 =ffffed100d506f85 R10=ffff88806a837c2b R11=0000000000000000
R12=0000000000000002 R13=ffff88801d2f8000 R14=ffffffff90614b10 R15=0000000000000000
RIP=ffffffff8b4e584f RFL=00000206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 0000000000000000 ffffffff 00c00000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 ffffffff 00c00000
FS =0000 0000000000000000 ffffffff 00c00000
GS =0000 ffff88806a800000 ffffffff 00c00000
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 fffffe0000091000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe000008f000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=000000c001ff3000 CR3=0000000028542000 CR4=00352ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000fffe0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
Opmask00=00000000feffffd0 Opmask01=0000000000000000 Opmask02=00000000ffbfef77 Opmask03=0000000000000000
Opmask04=00000000ffffffff Opmask05=00000000004007ff Opmask06=0000000007ffe7ff Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffcc54fe900 0000003000000010
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 2f2f2f2f2f2f2f2f 2f2f2f2f2f2f2f2f
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ff00000000000000 0000000000000000
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffff000000000000 0000000000000000
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffff000000000000 ffff000000000000
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffff000000000000 0000000000000000
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 656e696c5f706c63 73002a5d392d305b 79747400786d7470 0079747400646461
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 54003d534b4e494c 564544003d4d4554 535953425553003d 4854415056454400
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 540018534b4e494c 56454400184d4554 5359534255530018 4854415056454400
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 00000000000002b1 0000000000306963 682f68746f6f7465 756c622f6c617574
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 00005612a682e3d0 00005612a6800860 0000000000000031 0000000000007374
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 382433273f397b27 697a787c69303b7e 69305f474f5b647c 6930382433273f39
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 383a3a263d383a3a 263c383a3a263f38 3a3a263e383a3a26 39383a3a2638383a
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 373031383d4d0031 3d4553003053303d 4c494b4145005f4b 00383432383d4855
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 302c302c30300030 2c303000302c3030 2c302c303000302c 00302c3000313200
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 282b2e2fdf37342d 280bbfbf23243324 26312033fc040f18 1317140d080b0412
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 343133bffc121104 1214041204110814 100411bffc040f18 1317140d080b0412
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4141414141414141 4141414141414141 4141414141414141 4141414141414141
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2020202020202020 2020202020202020 2020202020202020 2020202020202020
info registers vcpu 3

CPU#3
RAX=00000000000354f1 RBX=0000000000000003 RCX=ffffffff8b4e4469 RDX=0000000000000000
RSI=ffffffff8b6ceca0 RDI=ffffffff8bd26900 RBP=ffffed1003a5f488 RSP=ffffc900001a7e08
R8 =0000000000000001 R9 =ffffed100d526f85 R10=ffff88806a937c2b R11=0000000000000000
R12=0000000000000003 R13=ffff88801d2fa440 R14=ffffffff90614b10 R15=0000000000000000
RIP=ffffffff8b4e584f RFL=00000202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 0000000000000000 ffffffff 00c00000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 ffffffff 00c00000
FS =0000 0000000000000000 ffffffff 00c00000
GS =0000 ffff88806a900000 ffffffff 00c00000
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 fffffe00000d8000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe00000d6000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007ffcc54fcc38 CR3=0000000031e64000 CR4=00352ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000fffe0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
Opmask00=0000000000004080 Opmask01=0000000000000000 Opmask02=00000000ffbfef77 Opmask03=0000000000000000
Opmask04=00000000ffffffff Opmask05=00000000004007ff Opmask06=0000000007ffe7ff Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 e84fcfa9c78ccedc f9358e8b8d1e6507
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 61fe0d8ee1aa91c6 0a53a729ace036b9
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 1c4fc8d55995bb04 a4ae025458899da4
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 f6ca87b37ba1d987 c0ea7406efc60b73
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000001940
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000040
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000000000000001f 0000000000000000
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 8ed23ca400000000 000000000000001f
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000000008f569510 0000001f00000000
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 8fb4a5e600000000 0000000000000000
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 d84c7dc136d97cbf 004b5ba7b9882b91
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 716f48661497e322 0996f7d142db9648
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 a54ff53a3c6ef372 bb67ae856a09e667
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 5be0cd191f83d9ab 9b05688c510e527f
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 656e696c5f706c63 73002a5d392d305b 79747400786d7470 0079747400646461
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 54003d534b4e494c 564544003d4d4554 535953425553003d 4854415056454400
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 540018534b4e494c 56454400184d4554 5359534255530018 4854415056454400
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000356c6c 696b66722f306963 682f68746f6f7465 756c622f6c617574
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 00005612a682e3d0 00005612a6800860 0000000000000031 0000000000007374
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 382433273f397b27 697a787c69303b7e 69305f474f5b647c 6930382433273f39
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 383a3a263d383a3a 263c383a3a263f38 3a3a263e383a3a26 39383a3a2638383a
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 373031383d4d0031 3d4553003053303d 4c494b4145005f4b 00383432383d4855
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 302c302c30300030 2c303000302c3030 2c302c303000302c 00302c3000313200
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 282b2e2fdf37342d 280bbfbf23243324 26312033fc040f18 1317140d080b0412
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 343133bffc121104 1214041204110814 100411bffc040f18 1317140d080b0412
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4141414141414141 4141414141414141 4141414141414141 4141414141414141
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2020202020202020 2020202020202020 2020202020202020 2020202020202020


syzkaller build log:
go env (err=<nil>)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.22.7'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build823339970=/tmp/go-build -gno-record-gcc-switches'

git status (err=<nil>)
HEAD detached at 68da6d951a
nothing to commit, working tree clean


tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
go fmt ./sys/... >/dev/null
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=68da6d951a345757b69b764ceb8dda1e9d65b038 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241122-101921'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"68da6d951a345757b69b764ceb8dda1e9d65b038\"
/usr/bin/ld: /tmp/ccwqmbyQ.o: in function `test_cover_filter()':
executor.cc:(.text+0x142db): warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/bin/ld: /tmp/ccwqmbyQ.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking


Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=112877df980000


Tested on:

commit: 2408a807 Merge tag 'vfs-6.14-rc4.fixes' of git://git.k..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
kernel config: https://syzkaller.appspot.com/x/.config?x=702f2e48d262560e
dashboard link: https://syzkaller.appspot.com/bug?extid=d693c07c6f647e0388d3
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=168a03a4580000

Nikita Zhandarovich

unread,
Feb 18, 2025, 11:55:58 AM2/18/25
to syzbot+d693c0...@syzkaller.appspotmail.com, Nikita Zhandarovich, syzkall...@googlegroups.com, linux-...@vger.kernel.org
Test upstream.

syzbot

unread,
Feb 18, 2025, 12:10:06 PM2/18/25
to linux-...@vger.kernel.org, n.zhand...@fintech.ru, syzkall...@googlegroups.com
Hello,

syzbot tried to test the proposed patch but the build/boot failed:

0000000000000000
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
info registers vcpu 2

CPU#2
RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8
RSI=ffffffff85373f15 RDI=ffffffff9ab4fa00 RBP=ffffffff9ab4f9c0 RSP=ffffc9000429f510
R8 =0000000000000001 R9 =000000000000001f R10=0000000000000000 R11=3630313838387257
R12=0000000000000000 R13=0000000000000020 R14=ffffffff9ab4f9c0 R15=0000000000000000
RIP=ffffffff85373f3f RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 ffffffff 00c00000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 ffffffff 00c00000
FS =0000 000055557cdf9500 ffffffff 00c00000
GS =0000 ffff88806a800000 ffffffff 00c00000
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 fffffe0000091000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe000008f000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007f6493307980 CR3=00000000272b0000 CR4=00352ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000fffe0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
Opmask00=00000000ffe00000 Opmask01=000000000000000f Opmask02=00000000ffffffef Opmask03=0000000000000000
Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 3030352036373538 3430312034323031
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 3432303120303035 2036373538343031
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2525252525252525 2525252525252525 2525252525252525 2525252525252525
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6e616d006574756f 7262003432303120 3030352036373538 3430312034323031
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4b4448004051504a 5747001117151405 151510051312101d 1115140511171514
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
info registers vcpu 3

CPU#3
RAX=0000000000033bd9 RBX=0000000000000003 RCX=ffffffff8b4e4469 RDX=0000000000000000
RSI=ffffffff8b6ceca0 RDI=ffffffff8bd26900 RBP=ffffed1003ad2488 RSP=ffffc900001a7e08
R8 =0000000000000001 R9 =ffffed100d526f85 R10=ffff88806a937c2b R11=0000000000000000
R12=0000000000000003 R13=ffff88801d692440 R14=ffffffff90614b10 R15=0000000000000000
RIP=ffffffff8b4e584f RFL=00000202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 0000000000000000 ffffffff 00c00000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 ffffffff 00c00000
FS =0000 0000000000000000 ffffffff 00c00000
GS =0000 ffff88806a900000 ffffffff 00c00000
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 fffffe00000d8000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe00000d6000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007ffcc0cdbda8 CR3=0000000031e76000 CR4=00352ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000fffe0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
Opmask00=0000000080000010 Opmask01=0000000000001d1f Opmask02=00000000ff001fff Opmask03=0000000000000000
Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000006f20 74276e6163003a23
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00002f6e69622f3a 6e776f6474756873
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffff0f0e0d0c0b0a 0908070605040302
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000006f20 74276e6163003a23
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 6362696c5f5f0045 5441564952505f43
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 5f766e6f63675f5f 0000000000000000 000000706d74752f 6e75722f7261762f
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 706d742f73666d61 7220746f6e207369 206d657473797365 6c696620746f6f72
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 00656c6966207261 6c75676572206120 746f6e2073692027 7325270074696e69
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000


GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1571425482=/tmp/go-build -gno-record-gcc-switches'

git status (err=<nil>)
HEAD detached at 68da6d951a
nothing to commit, working tree clean


tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
go fmt ./sys/... >/dev/null
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=68da6d951a345757b69b764ceb8dda1e9d65b038 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241122-101921'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"68da6d951a345757b69b764ceb8dda1e9d65b038\"
/usr/bin/ld: /tmp/ccItnQ6l.o: in function `test_cover_filter()':
executor.cc:(.text+0x142db): warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/bin/ld: /tmp/ccItnQ6l.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking


Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=109a2498580000


Tested on:

commit: 2408a807 Merge tag 'vfs-6.14-rc4.fixes' of git://git.k..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
kernel config: https://syzkaller.appspot.com/x/.config?x=702f2e48d262560e
dashboard link: https://syzkaller.appspot.com/bug?extid=d693c07c6f647e0388d3
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Nikita Zhandarovich

unread,
Feb 18, 2025, 12:11:08 PM2/18/25
to syzbot+d693c0...@syzkaller.appspotmail.com, Nikita Zhandarovich, syzkall...@googlegroups.com, linux-...@vger.kernel.org
Test upstream (again, different command this time).

#syz test

syzbot

unread,
Feb 18, 2025, 12:25:06 PM2/18/25
to linux-...@vger.kernel.org, n.zhand...@fintech.ru, syzkall...@googlegroups.com
Hello,

syzbot tried to test the proposed patch but the build/boot failed:

524f504d49005452
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 692020520050202c 2025204f504d4900 0061253a20252000 2527204d49005452
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 282b2e2fdf37342d 280bbfbf23243324 26312033fc040f18 1317140d080b0412
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 343133bffc121104 1214041204110814 100411bffc040f18 1317140d080b0412
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4141414141414141 4141414141414141 4141414141414141 4141414141414141
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2020202020202020 2020202020202020 2020202020202020 2020202020202020
info registers vcpu 2

CPU#2
RAX=000000000004278b RBX=0000000000000002 RCX=ffffffff8b4e4469 RDX=0000000000000000
RSI=ffffffff8b6ceca0 RDI=ffffffff8bd26900 RBP=ffffed1003b5c000 RSP=ffffc90000197e08
R8 =0000000000000001 R9 =ffffed100d506f85 R10=ffff88806a837c2b R11=0000000000000000
R12=0000000000000002 R13=ffff88801dae0000 R14=ffffffff90614b10 R15=0000000000000000
RIP=ffffffff8b4e584f RFL=00000206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 0000000000000000 ffffffff 00c00000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 ffffffff 00c00000
FS =0000 0000000000000000 ffffffff 00c00000
GS =0000 ffff88806a800000 ffffffff 00c00000
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 fffffe0000091000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe000008f000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007fffdcb061f8 CR3=000000000df80000 CR4=00352ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000fffe0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
Opmask00=00000000fffc0000 Opmask01=000000000000000f Opmask02=00000000ffffffef Opmask03=0000000000000000
Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 20303d766765735f 656c646e61683d53 4e4f4954504f5f4e 4153410063657865
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f188ae6d100 00007f188a30c440 00007f188a30c458 00007f188a30c4a0
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 3d534e4f4954504f 5f4e415341006365 786500726f747563 6578652d7a79732f
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
info registers vcpu 3

CPU#3
RAX=000000000003e505 RBX=0000000000000003 RCX=ffffffff8b4e4469 RDX=0000000000000000
RSI=ffffffff8b6ceca0 RDI=ffffffff8bd26900 RBP=ffffed1003b5c488 RSP=ffffc900001a7e08
R8 =0000000000000001 R9 =ffffed100d526f85 R10=ffff88806a937c2b R11=0000000000000000
R12=0000000000000003 R13=ffff88801dae2440 R14=ffffffff90614b10 R15=0000000000000000
RIP=ffffffff8b4e584f RFL=00000206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=1
ES =0000 0000000000000000 ffffffff 00c00000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 ffffffff 00c00000
FS =0000 0000000000000000 ffffffff 00c00000
GS =0000 ffff88806a900000 ffffffff 00c00000
LDT=0000 0000000000000000 ffffffff 00c00000
TR =0040 fffffe00000d8000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe00000d6000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007f188a147990 CR3=0000000035584000 CR4=00352ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000fffe0ff0 DR7=0000000000000400
EFER=0000000000000d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
Opmask00=0000000000004080 Opmask01=0000000000000000 Opmask02=000000000000ffdf Opmask03=0000000000000000
Opmask04=00000000ffffffff Opmask05=00000000004007ff Opmask06=0000000007ffe7ff Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ee8ed6b32035ce50 46142a0d23607437
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 7eef7d4bd80c52a8 b226fbc0c4ef8511
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 8bb1a6b37923a5a6 d135a98c3c438c02
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 c9e6f7c69e5e89b5 624d9e1bb044a5c6
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000001c80
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000040
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000020 0000000000000000
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 585c201200000000 58eaee9200000020
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 000000005884dac6 0000002000000000
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 58b740fa00000000 0000000000205826
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 8901cd2c3b0559be e64db09c351b7775
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 e59c4bae909fb40c 889973e031d30cbc
ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 a54ff53a3c6ef372 bb67ae856a09e667
ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 5be0cd191f83d9ab 9b05688c510e527f
ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000051 0000564a163d5a00 44455a494c414954 494e495f43455355
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6f6f742079617272 6120656c75722079 7261726f706d6574 002a3f005b3f2a00
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4a4a51055c445757 440540495057055c 5744574a55484051 000f1a005b1a0f00
ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000011c41 0000564a164cc750 00323400302d7874 2f7365756575712f
ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 44455a494c414954 494e495f43455355 0000000000000021 0000000000007374
ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4943213f395b2249 5a6e786b6e646b7e 59647a305f474f5b 647c79303a243a78
ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 26483b3a3a264b3b 3a0a00307f617930 382433273f397b27 697a787c69303b7e
ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 692054524f50202c 2064696c61696d20 0070253a20252054 524f504d49005452
ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 692020520050202c 2025204f504d4900 0061253a20252000 2527204d49005452
ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 282b2e2fdf37342d 280bbfbf23243324 26312033fc040f18 1317140d080b0412
ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 343133bffc121104 1214041204110814 100411bffc040f18 1317140d080b0412
ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4141414141414141 4141414141414141 4141414141414141 4141414141414141
ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a
ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2020202020202020 2020202020202020 2020202020202020 2020202020202020


GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2494262831=/tmp/go-build -gno-record-gcc-switches'

git status (err=<nil>)
HEAD detached at 68da6d951a
nothing to commit, working tree clean


tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
go fmt ./sys/... >/dev/null
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=68da6d951a345757b69b764ceb8dda1e9d65b038 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241122-101921'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"68da6d951a345757b69b764ceb8dda1e9d65b038\"
/usr/bin/ld: /tmp/ccSPePhN.o: in function `test_cover_filter()':
executor.cc:(.text+0x142db): warning: the use of `tempnam' is dangerous, better use `mkstemp'
/usr/bin/ld: /tmp/ccSPePhN.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking


Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=14a603a4580000


Tested on:

commit: 2408a807 Merge tag 'vfs-6.14-rc4.fixes' of git://git.k..
git tree: upstream

Nikita Zhandarovich

unread,
Feb 24, 2025, 10:30:45 AM2/24/25
to syzbot+d693c0...@syzkaller.appspotmail.com, Nikita Zhandarovich, syzkall...@googlegroups.com, linux-...@vger.kernel.org
Test if fix is working.

Also, enable a fix to KASAN issue in android to get past build/boot
error.

#syz test
---
drivers/android/binderfs.c | 1 +
drivers/net/usb/gl620a.c | 4 +---
2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c
index bc6bae76ccaf..94c6446604fc 100644
--- a/drivers/android/binderfs.c
+++ b/drivers/android/binderfs.c
@@ -274,6 +274,7 @@ static void binderfs_evict_inode(struct inode *inode)
mutex_unlock(&binderfs_minors_mutex);

if (refcount_dec_and_test(&device->ref)) {
+ hlist_del_init(&device->hlist);
kfree(device->context.name);
kfree(device);

syzbot

unread,
Feb 24, 2025, 11:01:04 AM2/24/25
to linux-...@vger.kernel.org, n.zhand...@fintech.ru, syzkall...@googlegroups.com
Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+d693c0...@syzkaller.appspotmail.com
Tested-by: syzbot+d693c0...@syzkaller.appspotmail.com

Tested on:

commit: d082ecbc Linux 6.14-rc4
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=105cadb0580000
kernel config: https://syzkaller.appspot.com/x/.config?x=ef2f2584b422a21
dashboard link: https://syzkaller.appspot.com/bug?extid=d693c07c6f647e0388d3
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=165b3fdf980000

Note: testing is done by a robot and is best-effort only.
Reply all
Reply to author
Forward
0 new messages