general protection fault in qp_release_pages
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syzbot
Oct 14, 2020, 4:32:23 PM10/14/20
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: a1b977b4 Linux 4.19.150
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=12bd27f0500000
kernel config: https://syzkaller.appspot.com/x/.config?x=c14008c8da1ca4d4
dashboard link: https://syzkaller.appspot.com/bug?extid=de69b9118a1682380586
compiler: gcc (GCC) 10.1.0-syz 20200507
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+de69b9...@syzkaller.appspotmail.com
bond1851: Enslaving bridge2826 as an active interface with an up link
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 32351 Comm: syz-executor.4 Not tainted 4.19.150-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:142 [inline]
RIP: 0010:put_page include/linux/mm.h:951 [inline]
RIP: 0010:qp_release_pages+0x5a/0x310 drivers/misc/vmw_vmci/vmci_queue_pair.c:650
Code: 04 fd 31 ff 48 89 ee e8 94 5f 04 fd 48 85 ed 0f 85 09 01 00 00 e9 4e 02 00 00 e8 f1 5d 04 fd 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 46 02 00 00 48 8b 45 08 31 ff 48 89 c3 48 89
RSP: 0018:ffff8881dabc7788 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffc9000e862000
RDX: 00000000000002f4 RSI: ffffffff846d746f RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881db8e3f40
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f93bd02f700(0000) GS:ffff8880ae300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000400200 CR3: 00000001e0b81000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
qp_host_get_user_memory+0x249/0x3e0 drivers/misc/vmw_vmci/vmci_queue_pair.c:674
qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:717 [inline]
qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1394 [inline]
qp_broker_alloc+0x10fa/0x1bd0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1748
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'.
vmci_qp_broker_alloc+0x48/0x60 drivers/misc/vmw_vmci/vmci_queue_pair.c:1941
vmci_host_do_alloc_queuepair.constprop.0+0x1b4/0x400 drivers/misc/vmw_vmci/vmci_host.c:495
vmci_host_unlocked_ioctl+0x1459/0x1e40 drivers/misc/vmw_vmci/vmci_host.c:944
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:501 [inline]
do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
__do_sys_ioctl fs/ioctl.c:712 [inline]
__se_sys_ioctl fs/ioctl.c:710 [inline]
__x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45de59
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f93bd02ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000010300 RCX: 000000000045de59
RDX: 0000000020000080 RSI: 00000000000007a8 RDI: 0000000000000003
RBP: 000000000118c0b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118c07c
R13: 00007ffec312254f R14: 00007f93bd02f9c0 R15: 000000000118c07c
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
Modules linked in:
---[ end trace 6284a6c5eb9a1d73 ]---
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:142 [inline]
RIP: 0010:put_page include/linux/mm.h:951 [inline]
RIP: 0010:qp_release_pages+0x5a/0x310 drivers/misc/vmw_vmci/vmci_queue_pair.c:650
Code: 04 fd 31 ff 48 89 ee e8 94 5f 04 fd 48 85 ed 0f 85 09 01 00 00 e9 4e 02 00 00 e8 f1 5d 04 fd 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 46 02 00 00 48 8b 45 08 31 ff 48 89 c3 48 89
RSP: 0018:ffff8881dabc7788 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffc9000e862000
RDX: 00000000000002f4 RSI: ffffffff846d746f RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881db8e3f40
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f93bd02f700(0000) GS:ffff8880ae300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32f23000 CR3: 00000001e0b81000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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.
syzbot found the following issue on:
HEAD commit: a1b977b4 Linux 4.19.150
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=12bd27f0500000
kernel config: https://syzkaller.appspot.com/x/.config?x=c14008c8da1ca4d4
dashboard link: https://syzkaller.appspot.com/bug?extid=de69b9118a1682380586
compiler: gcc (GCC) 10.1.0-syz 20200507
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+de69b9...@syzkaller.appspotmail.com
bond1851: Enslaving bridge2826 as an active interface with an up link
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 32351 Comm: syz-executor.4 Not tainted 4.19.150-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:142 [inline]
RIP: 0010:put_page include/linux/mm.h:951 [inline]
RIP: 0010:qp_release_pages+0x5a/0x310 drivers/misc/vmw_vmci/vmci_queue_pair.c:650
Code: 04 fd 31 ff 48 89 ee e8 94 5f 04 fd 48 85 ed 0f 85 09 01 00 00 e9 4e 02 00 00 e8 f1 5d 04 fd 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 46 02 00 00 48 8b 45 08 31 ff 48 89 c3 48 89
RSP: 0018:ffff8881dabc7788 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffc9000e862000
RDX: 00000000000002f4 RSI: ffffffff846d746f RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881db8e3f40
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f93bd02f700(0000) GS:ffff8880ae300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000400200 CR3: 00000001e0b81000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
qp_host_get_user_memory+0x249/0x3e0 drivers/misc/vmw_vmci/vmci_queue_pair.c:674
qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:717 [inline]
qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1394 [inline]
qp_broker_alloc+0x10fa/0x1bd0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1748
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'.
vmci_qp_broker_alloc+0x48/0x60 drivers/misc/vmw_vmci/vmci_queue_pair.c:1941
vmci_host_do_alloc_queuepair.constprop.0+0x1b4/0x400 drivers/misc/vmw_vmci/vmci_host.c:495
vmci_host_unlocked_ioctl+0x1459/0x1e40 drivers/misc/vmw_vmci/vmci_host.c:944
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:501 [inline]
do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
__do_sys_ioctl fs/ioctl.c:712 [inline]
__se_sys_ioctl fs/ioctl.c:710 [inline]
__x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45de59
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f93bd02ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000010300 RCX: 000000000045de59
RDX: 0000000020000080 RSI: 00000000000007a8 RDI: 0000000000000003
RBP: 000000000118c0b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118c07c
R13: 00007ffec312254f R14: 00007f93bd02f9c0 R15: 000000000118c07c
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
Modules linked in:
---[ end trace 6284a6c5eb9a1d73 ]---
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:142 [inline]
RIP: 0010:put_page include/linux/mm.h:951 [inline]
RIP: 0010:qp_release_pages+0x5a/0x310 drivers/misc/vmw_vmci/vmci_queue_pair.c:650
Code: 04 fd 31 ff 48 89 ee e8 94 5f 04 fd 48 85 ed 0f 85 09 01 00 00 e9 4e 02 00 00 e8 f1 5d 04 fd 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 46 02 00 00 48 8b 45 08 31 ff 48 89 c3 48 89
RSP: 0018:ffff8881dabc7788 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffc9000e862000
RDX: 00000000000002f4 RSI: ffffffff846d746f RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881db8e3f40
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f93bd02f700(0000) GS:ffff8880ae300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32f23000 CR3: 00000001e0b81000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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.
syzbot
Oct 14, 2020, 4:47:24 PM10/14/20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: a1b977b4 Linux 4.19.150
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=11d66a94500000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13ea4ee8500000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+de69b9...@syzkaller.appspotmail.com
audit: type=1400 audit(1602708268.599:8): avc: denied { execmem } for pid=6482 comm="syz-executor237" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff846d759c
RDX: 0000000000000000 RSI: ffffffff846d746f RDI: 0000000000000008
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff59b50978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402f9
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401b00
R13: 0000000000401b90 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace ef612ce3a4ae7dc1 ]---
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff846d759c
RDX: 0000000000000000 RSI: ffffffff846d746f RDI: 0000000000000008
HEAD commit: a1b977b4 Linux 4.19.150
git tree: linux-4.19.y
kernel config: https://syzkaller.appspot.com/x/.config?x=c14008c8da1ca4d4
dashboard link: https://syzkaller.appspot.com/bug?extid=de69b9118a1682380586
compiler: gcc (GCC) 10.1.0-syz 20200507
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=120ee3f0500000
dashboard link: https://syzkaller.appspot.com/bug?extid=de69b9118a1682380586
compiler: gcc (GCC) 10.1.0-syz 20200507
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13ea4ee8500000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+de69b9...@syzkaller.appspotmail.com
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 6482 Comm: syz-executor237 Not tainted 4.19.150-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:142 [inline]
RIP: 0010:put_page include/linux/mm.h:951 [inline]
RIP: 0010:qp_release_pages+0x5a/0x310 drivers/misc/vmw_vmci/vmci_queue_pair.c:650
Code: 04 fd 31 ff 48 89 ee e8 94 5f 04 fd 48 85 ed 0f 85 09 01 00 00 e9 4e 02 00 00 e8 f1 5d 04 fd 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 46 02 00 00 48 8b 45 08 31 ff 48 89 c3 48 89
RSP: 0018:ffff88808a167788 EFLAGS: 00010202
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:142 [inline]
RIP: 0010:put_page include/linux/mm.h:951 [inline]
RIP: 0010:qp_release_pages+0x5a/0x310 drivers/misc/vmw_vmci/vmci_queue_pair.c:650
Code: 04 fd 31 ff 48 89 ee e8 94 5f 04 fd 48 85 ed 0f 85 09 01 00 00 e9 4e 02 00 00 e8 f1 5d 04 fd 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 46 02 00 00 48 8b 45 08 31 ff 48 89 c3 48 89
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff846d759c
RDX: 0000000000000000 RSI: ffffffff846d746f RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88809e5a27c0
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000ad2880(0000) GS:ffff8880ae300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 000000008d480000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
qp_host_get_user_memory+0x249/0x3e0 drivers/misc/vmw_vmci/vmci_queue_pair.c:674
qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:717 [inline]
qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1394 [inline]
qp_broker_alloc+0x10fa/0x1bd0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1748
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
qp_host_get_user_memory+0x249/0x3e0 drivers/misc/vmw_vmci/vmci_queue_pair.c:674
qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:717 [inline]
qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1394 [inline]
qp_broker_alloc+0x10fa/0x1bd0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1748
vmci_qp_broker_alloc+0x48/0x60 drivers/misc/vmw_vmci/vmci_queue_pair.c:1941
vmci_host_do_alloc_queuepair.constprop.0+0x1b4/0x400 drivers/misc/vmw_vmci/vmci_host.c:495
vmci_host_unlocked_ioctl+0x1459/0x1e40 drivers/misc/vmw_vmci/vmci_host.c:944
vmci_host_do_alloc_queuepair.constprop.0+0x1b4/0x400 drivers/misc/vmw_vmci/vmci_host.c:495
vmci_host_unlocked_ioctl+0x1459/0x1e40 drivers/misc/vmw_vmci/vmci_host.c:944
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:501 [inline]
do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
__do_sys_ioctl fs/ioctl.c:712 [inline]
__se_sys_ioctl fs/ioctl.c:710 [inline]
__x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4402f9
file_ioctl fs/ioctl.c:501 [inline]
do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
__do_sys_ioctl fs/ioctl.c:712 [inline]
__se_sys_ioctl fs/ioctl.c:710 [inline]
__x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff59b50978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402f9
RDX: 0000000020000080 RSI: 00000000000007a8 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401b00
R13: 0000000000401b90 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace ef612ce3a4ae7dc1 ]---
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:142 [inline]
RIP: 0010:put_page include/linux/mm.h:951 [inline]
RIP: 0010:qp_release_pages+0x5a/0x310 drivers/misc/vmw_vmci/vmci_queue_pair.c:650
Code: 04 fd 31 ff 48 89 ee e8 94 5f 04 fd 48 85 ed 0f 85 09 01 00 00 e9 4e 02 00 00 e8 f1 5d 04 fd 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 46 02 00 00 48 8b 45 08 31 ff 48 89 c3 48 89
RSP: 0018:ffff88808a167788 EFLAGS: 00010202
RIP: 0010:compound_head include/linux/page-flags.h:142 [inline]
RIP: 0010:put_page include/linux/mm.h:951 [inline]
RIP: 0010:qp_release_pages+0x5a/0x310 drivers/misc/vmw_vmci/vmci_queue_pair.c:650
Code: 04 fd 31 ff 48 89 ee e8 94 5f 04 fd 48 85 ed 0f 85 09 01 00 00 e9 4e 02 00 00 e8 f1 5d 04 fd 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 46 02 00 00 48 8b 45 08 31 ff 48 89 c3 48 89
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff846d759c
RDX: 0000000000000000 RSI: ffffffff846d746f RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88809e5a27c0
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000ad2880(0000) GS:ffff8880ae300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 000000008d480000 CR4: 00000000001406e0
syzbot
Oct 23, 2020, 6:34:15 AM10/23/20
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 5b7a52cd Linux 4.14.202
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=137b44ef900000
kernel config: https://syzkaller.appspot.com/x/.config?x=fa386e02ca459165
dashboard link: https://syzkaller.appspot.com/bug?extid=957228ff3b8c86c3839f
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
md: could not open unknown-block(260,61).
CPU: 0 PID: 19703 Comm: syz-executor.5 Not tainted 4.14.202-syzkaller #0
md: md_import_device returned -6
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:147 [inline]
RIP: 0010:put_page include/linux/mm.h:860 [inline]
RIP: 0010:qp_release_pages+0x4f/0x280 drivers/misc/vmw_vmci/vmci_queue_pair.c:737
RSP: 0018:ffff88805e80f888 EFLAGS: 00010202
RAX: 0000000000000004 RBX: ffff8880aa3e5340 RCX: ffffc900065e0000
RDX: 00000000000001d5 RSI: ffffffff839b1944 RDI: 0000000000000020
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000001
R10: 0000000000000000 R11: ffff888060b8c580 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: fffffffffffffff2
FS: 00007f6205334700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:804 [inline]
qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1481 [inline]
qp_broker_alloc+0xfee/0x19a0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1835
vmci_qp_broker_alloc+0x48/0x60 drivers/misc/vmw_vmci/vmci_queue_pair.c:2028
vmci_host_do_alloc_queuepair.constprop.0+0x16b/0x350 drivers/misc/vmw_vmci/vmci_host.c:495
md: md_import_device returned -6
vmci_host_unlocked_ioctl+0xd08/0x1980 drivers/misc/vmw_vmci/vmci_host.c:944
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45de59
RSP: 002b:00007f6205333c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000010300 RCX: 000000000045de59
RDX: 0000000020000000 RSI: 00000000000007a8 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffeb6ddfc7f R14: 00007f62053349c0 R15: 000000000118bf2c
Code: 89 3c 24 48 89 74 24 08 e8 6f 23 bc fd 4d 85 ff 0f 85 b1 00 00 00 e9 c6 01 00 00 e8 5c 23 bc fd 48 8d 7d 20 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 be 01 00 00 4c 8b 7d 20 41 f6 c7 01 0f 85
RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff88805e80f888
RIP: compound_head include/linux/page-flags.h:147 [inline] RSP: ffff88805e80f888
RIP: put_page include/linux/mm.h:860 [inline] RSP: ffff88805e80f888
RIP: qp_release_pages+0x4f/0x280 drivers/misc/vmw_vmci/vmci_queue_pair.c:737 RSP: ffff88805e80f888
---[ end trace 8114220c8fca197e ]---
syzbot found the following issue on:
HEAD commit: 5b7a52cd Linux 4.14.202
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=137b44ef900000
kernel config: https://syzkaller.appspot.com/x/.config?x=fa386e02ca459165
dashboard link: https://syzkaller.appspot.com/bug?extid=957228ff3b8c86c3839f
compiler: gcc (GCC) 10.1.0-syz 20200507
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+957228...@syzkaller.appspotmail.com
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
md: could not open unknown-block(260,61).
CPU: 0 PID: 19703 Comm: syz-executor.5 Not tainted 4.14.202-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888060b8c580 task.stack: ffff88805e808000
md: md_import_device returned -6
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:147 [inline]
RIP: 0010:put_page include/linux/mm.h:860 [inline]
RIP: 0010:qp_release_pages+0x4f/0x280 drivers/misc/vmw_vmci/vmci_queue_pair.c:737
RSP: 0018:ffff88805e80f888 EFLAGS: 00010202
RAX: 0000000000000004 RBX: ffff8880aa3e5340 RCX: ffffc900065e0000
RDX: 00000000000001d5 RSI: ffffffff839b1944 RDI: 0000000000000020
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000001
R10: 0000000000000000 R11: ffff888060b8c580 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: fffffffffffffff2
FS: 00007f6205334700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff11e54990 CR3: 00000000a50ea000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
md: could not open unknown-block(260,61).
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
qp_host_get_user_memory+0x235/0x470 drivers/misc/vmw_vmci/vmci_queue_pair.c:761
Call Trace:
qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:804 [inline]
qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1481 [inline]
qp_broker_alloc+0xfee/0x19a0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1835
vmci_qp_broker_alloc+0x48/0x60 drivers/misc/vmw_vmci/vmci_queue_pair.c:2028
vmci_host_do_alloc_queuepair.constprop.0+0x16b/0x350 drivers/misc/vmw_vmci/vmci_host.c:495
md: md_import_device returned -6
vmci_host_unlocked_ioctl+0xd08/0x1980 drivers/misc/vmw_vmci/vmci_host.c:944
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45de59
RSP: 002b:00007f6205333c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000010300 RCX: 000000000045de59
RDX: 0000000020000000 RSI: 00000000000007a8 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffeb6ddfc7f R14: 00007f62053349c0 R15: 000000000118bf2c
Code: 89 3c 24 48 89 74 24 08 e8 6f 23 bc fd 4d 85 ff 0f 85 b1 00 00 00 e9 c6 01 00 00 e8 5c 23 bc fd 48 8d 7d 20 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 be 01 00 00 4c 8b 7d 20 41 f6 c7 01 0f 85
RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff88805e80f888
RIP: compound_head include/linux/page-flags.h:147 [inline] RSP: ffff88805e80f888
RIP: put_page include/linux/mm.h:860 [inline] RSP: ffff88805e80f888
RIP: qp_release_pages+0x4f/0x280 drivers/misc/vmw_vmci/vmci_queue_pair.c:737 RSP: ffff88805e80f888
---[ end trace 8114220c8fca197e ]---
syzbot
Oct 23, 2020, 6:49:21 AM10/23/20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 5b7a52cd Linux 4.14.202
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1453c98c500000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14cdc690500000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+957228...@syzkaller.appspotmail.com
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 7978 Comm: syz-executor906 Not tainted 4.14.202-syzkaller #0
RAX: 0000000000000004 RBX: ffff8880ac00b100 RCX: 1ffff11012aa9d9e
RDX: 0000000000000000 RSI: fffffffffffffff2 RDI: 0000000000000020
RSP: 002b:00007ffcdcf6be68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402f9
RIP: compound_head include/linux/page-flags.h:147 [inline] RSP: ffff88809a4ff888
RIP: put_page include/linux/mm.h:860 [inline] RSP: ffff88809a4ff888
RIP: qp_release_pages+0x4f/0x280 drivers/misc/vmw_vmci/vmci_queue_pair.c:737 RSP: ffff88809a4ff888
---[ end trace cb5d9770e6aac118 ]---
HEAD commit: 5b7a52cd Linux 4.14.202
git tree: linux-4.14.y
kernel config: https://syzkaller.appspot.com/x/.config?x=fa386e02ca459165
dashboard link: https://syzkaller.appspot.com/bug?extid=957228ff3b8c86c3839f
compiler: gcc (GCC) 10.1.0-syz 20200507
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14e863f7900000
dashboard link: https://syzkaller.appspot.com/bug?extid=957228ff3b8c86c3839f
compiler: gcc (GCC) 10.1.0-syz 20200507
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14cdc690500000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+957228...@syzkaller.appspotmail.com
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88809554e440 task.stack: ffff88809a4f8000
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:147 [inline]
RIP: 0010:put_page include/linux/mm.h:860 [inline]
RIP: 0010:qp_release_pages+0x4f/0x280 drivers/misc/vmw_vmci/vmci_queue_pair.c:737
RSP: 0018:ffff88809a4ff888 EFLAGS: 00010202
RIP: 0010:compound_head include/linux/page-flags.h:147 [inline]
RIP: 0010:put_page include/linux/mm.h:860 [inline]
RIP: 0010:qp_release_pages+0x4f/0x280 drivers/misc/vmw_vmci/vmci_queue_pair.c:737
RAX: 0000000000000004 RBX: ffff8880ac00b100 RCX: 1ffff11012aa9d9e
RDX: 0000000000000000 RSI: fffffffffffffff2 RDI: 0000000000000020
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000001
R10: 0000000000000000 R11: ffff88809554e440 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: fffffffffffffff2
FS: 0000000000c69880(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f34541f0018 CR3: 00000000aece2000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
qp_host_get_user_memory+0x235/0x470 drivers/misc/vmw_vmci/vmci_queue_pair.c:761
qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:804 [inline]
qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1481 [inline]
qp_broker_alloc+0xfee/0x19a0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1835
vmci_qp_broker_alloc+0x48/0x60 drivers/misc/vmw_vmci/vmci_queue_pair.c:2028
vmci_host_do_alloc_queuepair.constprop.0+0x16b/0x350 drivers/misc/vmw_vmci/vmci_host.c:495
Call Trace:
qp_host_get_user_memory+0x235/0x470 drivers/misc/vmw_vmci/vmci_queue_pair.c:761
qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:804 [inline]
qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1481 [inline]
qp_broker_alloc+0xfee/0x19a0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1835
vmci_qp_broker_alloc+0x48/0x60 drivers/misc/vmw_vmci/vmci_queue_pair.c:2028
vmci_host_do_alloc_queuepair.constprop.0+0x16b/0x350 drivers/misc/vmw_vmci/vmci_host.c:495
vmci_host_unlocked_ioctl+0xd08/0x1980 drivers/misc/vmw_vmci/vmci_host.c:944
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x4402f9
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RSP: 002b:00007ffcdcf6be68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402f9
RDX: 0000000020000000 RSI: 00000000000007a8 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401b00
R13: 0000000000401b90 R14: 0000000000000000 R15: 0000000000000000
R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401b00
R13: 0000000000401b90 R14: 0000000000000000 R15: 0000000000000000
Code: 89 3c 24 48 89 74 24 08 e8 6f 23 bc fd 4d 85 ff 0f 85 b1 00 00 00 e9 c6 01 00 00 e8 5c 23 bc fd 48 8d 7d 20 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 be 01 00 00 4c 8b 7d 20 41 f6 c7 01 0f 85
RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff88809a4ff888
RIP: compound_head include/linux/page-flags.h:147 [inline] RSP: ffff88809a4ff888
RIP: put_page include/linux/mm.h:860 [inline] RSP: ffff88809a4ff888
RIP: qp_release_pages+0x4f/0x280 drivers/misc/vmw_vmci/vmci_queue_pair.c:737 RSP: ffff88809a4ff888
---[ end trace cb5d9770e6aac118 ]---
syzbot
Nov 15, 2020, 10:59:10 PM11/15/20
to syzkaller...@googlegroups.com
syzbot suspects this issue was fixed by commit:
commit 0b02a43257805da6f670c1a1fe40d19499d9c741
Author: Alex Dewar <alex.d...@gmail.com>
Date: Tue Aug 25 16:45:18 2020 +0000
VMCI: check return value of get_user_pages_fast() for errors
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1328cec2500000
start commit: a1b977b4 Linux 4.19.150
git tree: linux-4.19.y
#syz fix: VMCI: check return value of get_user_pages_fast() for errors
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
commit 0b02a43257805da6f670c1a1fe40d19499d9c741
Author: Alex Dewar <alex.d...@gmail.com>
Date: Tue Aug 25 16:45:18 2020 +0000
VMCI: check return value of get_user_pages_fast() for errors
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1328cec2500000
start commit: a1b977b4 Linux 4.19.150
git tree: linux-4.19.y
kernel config: https://syzkaller.appspot.com/x/.config?x=c14008c8da1ca4d4
dashboard link: https://syzkaller.appspot.com/bug?extid=de69b9118a1682380586
dashboard link: https://syzkaller.appspot.com/bug?extid=de69b9118a1682380586
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=120ee3f0500000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13ea4ee8500000
If the result looks correct, please mark the issue as fixed by replying with:
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13ea4ee8500000
#syz fix: VMCI: check return value of get_user_pages_fast() for errors
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot
Dec 22, 2020, 9:02:10 AM12/22/20
to syzkaller...@googlegroups.com
syzbot suspects this issue was fixed by commit:
commit 2b8c7395d275caa8bd2bcda282ba889c727095dc
Author: Alex Dewar <alex.d...@gmail.com>
Date: Tue Aug 25 16:45:18 2020 +0000
VMCI: check return value of get_user_pages_fast() for errors
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=161f6693500000
Date: Tue Aug 25 16:45:18 2020 +0000
VMCI: check return value of get_user_pages_fast() for errors
start commit: 5b7a52cd Linux 4.14.202
git tree: linux-4.14.y
kernel config: https://syzkaller.appspot.com/x/.config?x=fa386e02ca459165
dashboard link: https://syzkaller.appspot.com/bug?extid=957228ff3b8c86c3839f
dashboard link: https://syzkaller.appspot.com/bug?extid=957228ff3b8c86c3839f
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14e863f7900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14cdc690500000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14cdc690500000
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