[syzbot] [wireless?] WARNING in ieee80211_encrypt_tx_skb
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syzbot
Jul 12, 2026, 5:33:35 PM (18 hours ago) Jul 12
to joha...@sipsolutions.net, linux-...@vger.kernel.org, linux-w...@vger.kernel.org, net...@vger.kernel.org, syzkall...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 61c03dfde854 Merge tag 'ntfs-for-7.2-rc3' of git://git.ker..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=116470b9580000
kernel config: https://syzkaller.appspot.com/x/.config?x=20c9876b0f77b546
dashboard link: https://syzkaller.appspot.com/bug?extid=b6ce23950fd636e6efb6
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16b85432580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=162e20b9580000
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-61c03dfd.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e06f2aec094f/vmlinux-61c03dfd.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a85168c67732/bzImage-61c03dfd.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b6ce23...@syzkaller.appspotmail.com
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fb87e825fac R14: 00007fb87e825fa0 R15: 00007fb87e825fa0
</TASK>
------------[ cut here ]------------
res != TX_CONTINUE
WARNING: net/mac80211/tx.c:5460 at ieee80211_encrypt_tx_skb+0x3e4/0x3f0 net/mac80211/tx.c:5460, CPU#0: syz.0.17/5534
Modules linked in:
CPU: 0 UID: 0 PID: 5534 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:ieee80211_encrypt_tx_skb+0x3e4/0x3f0 net/mac80211/tx.c:5460
Code: ff ff ff e8 9e 1a 7a f6 90 0f 0b 90 e9 0b ff ff ff e8 90 1a 7a f6 90 0f 0b 90 bb ea ff ff ff e9 20 ff ff ff e8 7d 1a 7a f6 90 <0f> 0b 90 eb eb e8 d2 bb 84 00 66 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90003526a20 EFLAGS: 00010293
RAX: ffffffff8b4c6813 RBX: 0000000000000000 RCX: ffff88803a6f0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003526b90 R08: ffff8880129723cf R09: 0000000000000000
R10: ffff8880129723c0 R11: ffffed100252e47a R12: ffffc90003526a68
R13: 1ffff920006a4d48 R14: dffffc0000000000 R15: 0000000000000001
FS: 00005555940ec500(0000) GS:ffff88808c54d000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000003700 CR3: 0000000012968000 CR4: 0000000000352ef0
Call Trace:
<TASK>
mac80211_hwsim_tx+0x1de/0x2500 drivers/net/wireless/virtual/mac80211_hwsim_main.c:2116
ieee80211_hwsim_wake_tx_queue+0xd4/0x150 drivers/net/wireless/virtual/mac80211_hwsim_main.c:2291
drv_wake_tx_queue net/mac80211/driver-ops.h:1394 [inline]
schedule_and_wake_txq net/mac80211/driver-ops.h:1401 [inline]
ieee80211_queue_skb+0x1923/0x22c0 net/mac80211/tx.c:1674
__ieee80211_xmit_fast+0x8ea/0x2160 net/mac80211/tx.c:3785
ieee80211_xmit_fast net/mac80211/tx.c:3853 [inline]
__ieee80211_subif_start_xmit+0x12af/0x1690 net/mac80211/tx.c:4367
ieee80211_tx_control_port+0xaba/0xcd0 net/mac80211/tx.c:6592
rdev_tx_control_port net/wireless/rdev-ops.h:783 [inline]
nl80211_tx_control_port+0x604/0x990 net/wireless/nl80211.c:18403
genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114
genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline]
genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209
netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
__sock_sendmsg net/socket.c:790 [inline]
____sys_sendmsg+0x54e/0x850 net/socket.c:2684
___sys_sendmsg+0x2a5/0x360 net/socket.c:2738
__sys_sendmsg net/socket.c:2770 [inline]
__do_sys_sendmsg net/socket.c:2775 [inline]
__se_sys_sendmsg net/socket.c:2773 [inline]
__x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2773
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb87e59de59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffca021cc48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fb87e825fa0 RCX: 00007fb87e59de59
RDX: 0000000000000800 RSI: 0000200000003700 RDI: 0000000000000003
RBP: 00007ffca021ccb0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fb87e825fac R14: 00007fb87e825fa0 R15: 00007fb87e825fa0
</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
syzbot found the following issue on:
HEAD commit: 61c03dfde854 Merge tag 'ntfs-for-7.2-rc3' of git://git.ker..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=116470b9580000
kernel config: https://syzkaller.appspot.com/x/.config?x=20c9876b0f77b546
dashboard link: https://syzkaller.appspot.com/bug?extid=b6ce23950fd636e6efb6
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16b85432580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=162e20b9580000
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-61c03dfd.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e06f2aec094f/vmlinux-61c03dfd.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a85168c67732/bzImage-61c03dfd.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b6ce23...@syzkaller.appspotmail.com
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fb87e825fac R14: 00007fb87e825fa0 R15: 00007fb87e825fa0
</TASK>
------------[ cut here ]------------
res != TX_CONTINUE
WARNING: net/mac80211/tx.c:5460 at ieee80211_encrypt_tx_skb+0x3e4/0x3f0 net/mac80211/tx.c:5460, CPU#0: syz.0.17/5534
Modules linked in:
CPU: 0 UID: 0 PID: 5534 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:ieee80211_encrypt_tx_skb+0x3e4/0x3f0 net/mac80211/tx.c:5460
Code: ff ff ff e8 9e 1a 7a f6 90 0f 0b 90 e9 0b ff ff ff e8 90 1a 7a f6 90 0f 0b 90 bb ea ff ff ff e9 20 ff ff ff e8 7d 1a 7a f6 90 <0f> 0b 90 eb eb e8 d2 bb 84 00 66 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90003526a20 EFLAGS: 00010293
RAX: ffffffff8b4c6813 RBX: 0000000000000000 RCX: ffff88803a6f0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003526b90 R08: ffff8880129723cf R09: 0000000000000000
R10: ffff8880129723c0 R11: ffffed100252e47a R12: ffffc90003526a68
R13: 1ffff920006a4d48 R14: dffffc0000000000 R15: 0000000000000001
FS: 00005555940ec500(0000) GS:ffff88808c54d000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000003700 CR3: 0000000012968000 CR4: 0000000000352ef0
Call Trace:
<TASK>
mac80211_hwsim_tx+0x1de/0x2500 drivers/net/wireless/virtual/mac80211_hwsim_main.c:2116
ieee80211_hwsim_wake_tx_queue+0xd4/0x150 drivers/net/wireless/virtual/mac80211_hwsim_main.c:2291
drv_wake_tx_queue net/mac80211/driver-ops.h:1394 [inline]
schedule_and_wake_txq net/mac80211/driver-ops.h:1401 [inline]
ieee80211_queue_skb+0x1923/0x22c0 net/mac80211/tx.c:1674
__ieee80211_xmit_fast+0x8ea/0x2160 net/mac80211/tx.c:3785
ieee80211_xmit_fast net/mac80211/tx.c:3853 [inline]
__ieee80211_subif_start_xmit+0x12af/0x1690 net/mac80211/tx.c:4367
ieee80211_tx_control_port+0xaba/0xcd0 net/mac80211/tx.c:6592
rdev_tx_control_port net/wireless/rdev-ops.h:783 [inline]
nl80211_tx_control_port+0x604/0x990 net/wireless/nl80211.c:18403
genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114
genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline]
genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209
netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
__sock_sendmsg net/socket.c:790 [inline]
____sys_sendmsg+0x54e/0x850 net/socket.c:2684
___sys_sendmsg+0x2a5/0x360 net/socket.c:2738
__sys_sendmsg net/socket.c:2770 [inline]
__do_sys_sendmsg net/socket.c:2775 [inline]
__se_sys_sendmsg net/socket.c:2773 [inline]
__x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2773
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb87e59de59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffca021cc48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fb87e825fa0 RCX: 00007fb87e59de59
RDX: 0000000000000800 RSI: 0000200000003700 RDI: 0000000000000003
RBP: 00007ffca021ccb0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fb87e825fac R14: 00007fb87e825fa0 R15: 00007fb87e825fa0
</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
syzbot
Jul 12, 2026, 8:50:19 PM (14 hours ago) Jul 12
to linux-...@vger.kernel.org, syzkall...@googlegroups.com
For archival purposes, forwarding an incoming command email to
linux-...@vger.kernel.org, syzkall...@googlegroups.com.
***
Subject: [PATCH] mac80211: debug print key cipher in ieee80211_tx_h_encrypt
Author: karti...@gmail.com
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
Reported-by: syzbot+b6ce23...@syzkaller.appspotmail.com
Signed-off-by: Deepanshu Kartikey <karti...@gmail.com>
---
net/mac80211/tx.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index c13b209fad47..5fb2fa7adf07 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1045,6 +1045,9 @@ ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
static ieee80211_tx_result debug_noinline
ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
{
+ if (tx->key)
+ printk("key cipher = 0x%x\n",
+ tx->key->conf.cipher);
if (!tx->key)
return TX_CONTINUE;
--
2.43.0
linux-...@vger.kernel.org, syzkall...@googlegroups.com.
***
Subject: [PATCH] mac80211: debug print key cipher in ieee80211_tx_h_encrypt
Author: karti...@gmail.com
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
Reported-by: syzbot+b6ce23...@syzkaller.appspotmail.com
Signed-off-by: Deepanshu Kartikey <karti...@gmail.com>
---
net/mac80211/tx.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index c13b209fad47..5fb2fa7adf07 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1045,6 +1045,9 @@ ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
static ieee80211_tx_result debug_noinline
ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
{
+ if (tx->key)
+ printk("key cipher = 0x%x\n",
+ tx->key->conf.cipher);
if (!tx->key)
return TX_CONTINUE;
--
2.43.0
syzbot
Jul 12, 2026, 9:16:06 PM (14 hours ago) Jul 12
to karti...@gmail.com, linux-...@vger.kernel.org, syzkall...@googlegroups.com
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
lost connection to test machine
syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000)
[ 92.033680][ T1241] cfg80211: failed to load regulatory.db
Warning: Permanently added '[localhost]:5965' (ED25519) to the list of known hosts.
2026/07/13 01:14:26 parsed 1 programs
2026/07/13 01:14:26 serving rpc on tcp://42597
[ 99.461167][ T5293] cgroup: Unknown subsys name 'net'
[ 99.517346][ T5293] cgroup: Unknown subsys name 'cpuset'
[ 99.528587][ T5293] cgroup: Unknown subsys name 'rlimit'
[ 143.216901][ T1333] ieee802154 phy0 wpan0: encryption failed: -22
[ 143.220290][ T1333] ieee802154 phy1 wpan1: encryption failed: -22
[ 153.472734][ T1031] ata1.00: exception Emask 0x0 SAct 0x800 SErr 0x0 action 0x6 frozen
[ 153.477165][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED
[ 153.480740][ T1031] ata1.00: cmd 61/00:58:36:c1:04/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou
[ 153.480740][ T1031] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 153.488811][ T1031] ata1.00: status: { DRDY }
[ 153.491820][ T1031] ata1: hard resetting link
[ 153.815566][ T1031] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 153.821835][ T1031] ata1.00: configured for UDMA/100
[ 153.824800][ T1031] ata1: EH complete
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000)
[ 153.854356][ C0] ata1: illegal qc_active transition (00000000->00000001)
[ 153.858579][ T1031] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1
[ 153.872882][ T1031] ata1: failed to read log page 10h (errno=-5)
[ 153.879378][ T1031] ata1.00: NCQ disabled due to excessive errors
[ 153.884704][ T1031] ata1.00: exception Emask 0x1 SAct 0x1c000000 SErr 0x0 action 0x6 frozen
[ 153.892610][ T1031] ata1.00: irq_stat 0x41000000
[ 153.895439][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED
[ 153.902808][ T1031] ata1.00: cmd 61/00:d0:36:c1:04/20:00:00:00:00/40 tag 26 ncq dma 4194304 ou
[ 153.902808][ T1031] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[ 153.917658][ T1031] ata1.00: status: { DRDY }
[ 153.923618][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED
[ 153.928214][ T1031] ata1.00: cmd 61/00:d8:36:01:05/20:00:00:00:00/40 tag 27 ncq dma 4194304 ou
[ 153.928214][ T1031] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[ 153.937314][ T1031] ata1.00: status: { DRDY }
[ 153.939431][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED
[ 153.942950][ T1031] ata1.00: cmd 61/00:e0:36:21:05/20:00:00:00:00/40 tag 28 ncq dma 4194304 ou
[ 153.942950][ T1031] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[ 153.951088][ T1031] ata1.00: status: { DRDY }
[ 153.953334][ T1031] ata1: hard resetting link
[ 154.274367][ T1031] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 154.278715][ T1031] ata1.00: configured for UDMA/100
[ 154.604423][ T1031] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 154.609763][ T1031] ata1.00: configured for UDMA/100
[ 154.612860][ T1031] ata1: EH complete
qemu-system-x86_64: hw/ide/core.c:934: ide_dma_cb: Assertion `prep_size >= 0 && prep_size <= n * 512' failed.
Connection to localhost closed by remote host.
syzkaller build log:
go env (err=<nil>)
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE='auto'
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1621918705=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod'
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'
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.26.0'
GOWORK=''
PKG_CONFIG='pkg-config'
git status (err=<nil>)
HEAD detached at d78ea535f4
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: downloading golang.org/x/sys v0.46.0
go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d78ea535f456172a095a6d211ee0a2de1d049968 -X github.com/google/syzkaller/prog.gitRevisionDate=20260710-134808" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d78ea535f456172a095a6d211ee0a2de1d049968 -X github.com/google/syzkaller/prog.gitRevisionDate=20260710-134808" ./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
touch .descriptions
GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d78ea535f456172a095a6d211ee0a2de1d049968 -X github.com/google/syzkaller/prog.gitRevisionDate=20260710-134808" -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 -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"d78ea535f456172a095a6d211ee0a2de1d049968\"
go: downloading golang.org/x/sync v0.21.0
go: downloading google.golang.org/api v0.287.0
go: downloading google.golang.org/grpc v1.82.0
go: downloading google.golang.org/genproto/googleapis/rpc v0.0.0-20260622175928-b703f567277d
go: downloading golang.org/x/net v0.56.0
go: downloading golang.org/x/text v0.38.0
go: downloading github.com/googleapis/enterprise-certificate-proxy v0.3.17
go: downloading golang.org/x/crypto v0.53.0
/usr/bin/ld: /tmp/cc2Lmulv.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
./tools/check-syzos.sh 2>/dev/null
Tested on:
commit: a13c140c Linux 7.2-rc3
git tree: upstream
syzbot tried to test the proposed patch but the build/boot failed:
lost connection to test machine
syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000)
[ 92.033680][ T1241] cfg80211: failed to load regulatory.db
Warning: Permanently added '[localhost]:5965' (ED25519) to the list of known hosts.
2026/07/13 01:14:26 parsed 1 programs
2026/07/13 01:14:26 serving rpc on tcp://42597
[ 99.461167][ T5293] cgroup: Unknown subsys name 'net'
[ 99.517346][ T5293] cgroup: Unknown subsys name 'cpuset'
[ 99.528587][ T5293] cgroup: Unknown subsys name 'rlimit'
[ 143.216901][ T1333] ieee802154 phy0 wpan0: encryption failed: -22
[ 143.220290][ T1333] ieee802154 phy1 wpan1: encryption failed: -22
[ 153.472734][ T1031] ata1.00: exception Emask 0x0 SAct 0x800 SErr 0x0 action 0x6 frozen
[ 153.477165][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED
[ 153.480740][ T1031] ata1.00: cmd 61/00:58:36:c1:04/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou
[ 153.480740][ T1031] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 153.488811][ T1031] ata1.00: status: { DRDY }
[ 153.491820][ T1031] ata1: hard resetting link
[ 153.815566][ T1031] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 153.821835][ T1031] ata1.00: configured for UDMA/100
[ 153.824800][ T1031] ata1: EH complete
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000)
[ 153.854356][ C0] ata1: illegal qc_active transition (00000000->00000001)
[ 153.858579][ T1031] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1
[ 153.872882][ T1031] ata1: failed to read log page 10h (errno=-5)
[ 153.879378][ T1031] ata1.00: NCQ disabled due to excessive errors
[ 153.884704][ T1031] ata1.00: exception Emask 0x1 SAct 0x1c000000 SErr 0x0 action 0x6 frozen
[ 153.892610][ T1031] ata1.00: irq_stat 0x41000000
[ 153.895439][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED
[ 153.902808][ T1031] ata1.00: cmd 61/00:d0:36:c1:04/20:00:00:00:00/40 tag 26 ncq dma 4194304 ou
[ 153.902808][ T1031] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[ 153.917658][ T1031] ata1.00: status: { DRDY }
[ 153.923618][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED
[ 153.928214][ T1031] ata1.00: cmd 61/00:d8:36:01:05/20:00:00:00:00/40 tag 27 ncq dma 4194304 ou
[ 153.928214][ T1031] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[ 153.937314][ T1031] ata1.00: status: { DRDY }
[ 153.939431][ T1031] ata1.00: failed command: WRITE FPDMA QUEUED
[ 153.942950][ T1031] ata1.00: cmd 61/00:e0:36:21:05/20:00:00:00:00/40 tag 28 ncq dma 4194304 ou
[ 153.942950][ T1031] res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[ 153.951088][ T1031] ata1.00: status: { DRDY }
[ 153.953334][ T1031] ata1: hard resetting link
[ 154.274367][ T1031] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 154.278715][ T1031] ata1.00: configured for UDMA/100
[ 154.604423][ T1031] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 154.609763][ T1031] ata1.00: configured for UDMA/100
[ 154.612860][ T1031] ata1: EH complete
qemu-system-x86_64: hw/ide/core.c:934: ide_dma_cb: Assertion `prep_size >= 0 && prep_size <= n * 512' failed.
Connection to localhost closed by remote host.
syzkaller build log:
go env (err=<nil>)
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE='auto'
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1621918705=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod'
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'
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.26.0'
GOWORK=''
PKG_CONFIG='pkg-config'
git status (err=<nil>)
HEAD detached at d78ea535f4
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: downloading golang.org/x/sys v0.46.0
go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d78ea535f456172a095a6d211ee0a2de1d049968 -X github.com/google/syzkaller/prog.gitRevisionDate=20260710-134808" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d78ea535f456172a095a6d211ee0a2de1d049968 -X github.com/google/syzkaller/prog.gitRevisionDate=20260710-134808" ./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
touch .descriptions
GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d78ea535f456172a095a6d211ee0a2de1d049968 -X github.com/google/syzkaller/prog.gitRevisionDate=20260710-134808" -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 -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"d78ea535f456172a095a6d211ee0a2de1d049968\"
go: downloading golang.org/x/sync v0.21.0
go: downloading google.golang.org/api v0.287.0
go: downloading google.golang.org/grpc v1.82.0
go: downloading google.golang.org/genproto/googleapis/rpc v0.0.0-20260622175928-b703f567277d
go: downloading golang.org/x/net v0.56.0
go: downloading golang.org/x/text v0.38.0
go: downloading github.com/googleapis/enterprise-certificate-proxy v0.3.17
go: downloading golang.org/x/crypto v0.53.0
/usr/bin/ld: /tmp/cc2Lmulv.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
./tools/check-syzos.sh 2>/dev/null
Tested on:
commit: a13c140c Linux 7.2-rc3
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=20c9876b0f77b546
dashboard link: https://syzkaller.appspot.com/bug?extid=b6ce23950fd636e6efb6
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=17853432580000
dashboard link: https://syzkaller.appspot.com/bug?extid=b6ce23950fd636e6efb6
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
syzbot
Jul 12, 2026, 9:22:21 PM (14 hours ago) Jul 12
to linux-...@vger.kernel.org, syzkall...@googlegroups.com
For archival purposes, forwarding an incoming command email to
linux-...@vger.kernel.org, syzkall...@googlegroups.com.
***
Subject: [PATCH] mac80211: don't encrypt pre-auth (ETH_P_PREAUTH) frames
linux-...@vger.kernel.org, syzkall...@googlegroups.com.
***
Author: karti...@gmail.com
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
Pre-authentication frames (ETH_P_PREAUTH, 0x88C7) are sent before
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
the authentication handshake completes with the target AP, so no
encryption key exists for them yet. Unlike normal EAPOL frames
(ETH_P_8021X, 0x888E) which are registered as the control port
protocol, pre-auth frames are not recognized as control port frames,
causing the kernel to incorrectly assign the current AP's key and
attempt encryption, resulting in a WARN_ON in ieee80211_encrypt_tx_skb
when the cipher is not handled.
Fix this by setting IEEE80211_TX_INTFL_DONT_ENCRYPT for pre-auth
frames in ieee80211_tx_h_check_control_port_protocol(), so that
key selection skips them and they are sent unencrypted as intended.
Reported-by: syzbot+b6ce23...@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=b6ce23950fd636e6efb6
Signed-off-by: Deepanshu Kartikey <karti...@gmail.com>
---
net/mac80211/tx.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index c13b209fad47..b3acfd69380f 100644
---
net/mac80211/tx.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -557,6 +557,9 @@ ieee80211_tx_h_check_control_port_protocol(struct ieee80211_tx_data *tx)
info->flags |= IEEE80211_TX_CTL_USE_MINRATE;
}
+ if (tx->skb->protocol == htons(ETH_P_PREAUTH))
+ info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
+
return TX_CONTINUE;
}
--
2.43.0
syzbot
Jul 12, 2026, 9:47:05 PM (13 hours ago) Jul 12
to karti...@gmail.com, linux-...@vger.kernel.org, syzkall...@googlegroups.com
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
lost connection to test machine
syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x381000)
syzbot tried to test the proposed patch but the build/boot failed:
lost connection to test machine
[ 92.055873][ T9] cfg80211: failed to load regulatory.db
Warning: Permanently added '[localhost]:40504' (ED25519) to the list of known hosts.
2026/07/13 01:45:12 parsed 1 programs
2026/07/13 01:45:12 serving rpc on tcp://45575
[ 99.651084][ T5291] cgroup: Unknown subsys name 'net'
[ 99.712866][ T5291] cgroup: Unknown subsys name 'cpuset'
[ 99.719485][ T5291] cgroup: Unknown subsys name 'rlimit'
[ 138.121120][ T1332] ieee802154 phy0 wpan0: encryption failed: -22
[ 138.124012][ T1332] ieee802154 phy1 wpan1: encryption failed: -22
[ 151.575957][ T1028] ata1.00: exception Emask 0x0 SAct 0x800 SErr 0x0 action 0x6 frozen
[ 151.579679][ T1028] ata1.00: failed command: WRITE FPDMA QUEUED
[ 151.582950][ T1028] ata1.00: cmd 61/08:58:36:81:04/1c:00:00:00:00/40 tag 11 ncq dma 3674112 ou
[ 151.582950][ T1028] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 151.591914][ T1028] ata1.00: status: { DRDY }
[ 151.593862][ T1028] ata1: hard resetting link
[ 151.917540][ T1028] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 151.922216][ T1028] ata1.00: configured for UDMA/100
[ 151.925108][ T1028] ata1: EH complete
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x381000)
[ 151.946582][ T1028] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1
[ 151.949304][ T1028] ata1: failed to read log page 10h (errno=-5)
[ 151.952641][ T1028] ata1.00: NCQ disabled due to excessive errors
[ 151.956695][ T1028] ata1.00: exception Emask 0x1 SAct 0x40000000 SErr 0x0 action 0x0
[ 151.959877][ T1028] ata1.00: irq_stat 0x41000008
[ 151.961995][ T1028] ata1.00: failed command: WRITE FPDMA QUEUED
[ 151.964665][ T1028] ata1.00: cmd 61/08:f0:36:81:04/1c:00:00:00:00/40 tag 30 ncq dma 3674112 ou
[ 151.964665][ T1028] res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[ 151.973268][ T1028] ata1.00: status: { DRDY }
[ 151.975443][ T1028] ata1.00: error: { ABRT }
[ 151.979006][ T1028] ata1.00: configured for UDMA/100
[ 151.981695][ T1028] ata1: EH complete
go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d78ea535f456172a095a6d211ee0a2de1d049968 -X github.com/google/syzkaller/prog.gitRevisionDate=20260710-134808" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d78ea535f456172a095a6d211ee0a2de1d049968 -X github.com/google/syzkaller/prog.gitRevisionDate=20260710-134808" ./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
touch .descriptions
GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d78ea535f456172a095a6d211ee0a2de1d049968 -X github.com/google/syzkaller/prog.gitRevisionDate=20260710-134808" -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 -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"d78ea535f456172a095a6d211ee0a2de1d049968\"
/usr/bin/ld: /tmp/cc6wBj4p.o: in function `Connection::Connect(char const*, char const*)':
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
touch .descriptions
GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=d78ea535f456172a095a6d211ee0a2de1d049968 -X github.com/google/syzkaller/prog.gitRevisionDate=20260710-134808" -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 -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"d78ea535f456172a095a6d211ee0a2de1d049968\"
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
./tools/check-syzos.sh 2>/dev/null
Tested on:
commit: a13c140c Linux 7.2-rc3
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=20c9876b0f77b546
dashboard link: https://syzkaller.appspot.com/bug?extid=b6ce23950fd636e6efb6
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=15e8db89580000
./tools/check-syzos.sh 2>/dev/null
Tested on:
commit: a13c140c Linux 7.2-rc3
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=20c9876b0f77b546
dashboard link: https://syzkaller.appspot.com/bug?extid=b6ce23950fd636e6efb6
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
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