syzbot


WARNING in ieee80211_tdls_oper

Status: upstream: reported on 2026/05/16 14:09
Reported-by: syzbot+a16c095ee3b55f788715@syzkaller.appspotmail.com
First crash: 2d20h, last: 2d20h
Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in ieee80211_tdls_oper (3) wireless -1 C error 1 71d 70d 28/29 upstream: reported C repro on 2026/03/09 17:57
upstream WARNING in ieee80211_tdls_oper (2) wireless -1 C 2 236d 235d 0/29 auto-obsoleted due to no activity on 2026/01/03 09:18
upstream WARNING in ieee80211_tdls_oper wireless -1 C 6 347d 371d 29/29 fixed on 2025/09/04 16:57

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7625 at net/mac80211/tdls.c:1398 ieee80211_tdls_oper+0x2e4/0x578 net/mac80211/tdls.c:1397
Modules linked in:
CPU: 1 PID: 7625 Comm: syz.6.727 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : ieee80211_tdls_oper+0x2e4/0x578 net/mac80211/tdls.c:1397
lr : ieee80211_tdls_oper+0x2e4/0x578 net/mac80211/tdls.c:1397
sp : ffff800022837310
x29: ffff800022837320 x28: 0000000000000000 x27: 0000000000000000
x26: 1fffe0001ab722b5 x25: dfff800000000000 x24: 0000000000000000
x23: ffff0000d5b91c76 x22: ffff0000c9e9f020 x21: ffff0000d5b915a8
x20: ffff0000f5348e80 x19: ffff0000d5b90000 x18: ffff800011b9bf60
x17: ffff80001835b000 x16: ffff8000082d7ed4 x15: 0000000000000002
x14: 0000000000000001 x13: 1ffff00004506e4c x12: 0000000000080000
x11: 00000000000022c6 x10: ffff80002191b000 x9 : ffff8000113dff1c
x8 : 00000000000022c7 x7 : ffff8000113e7ad4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000010 x3 : ffff800011b12e7c
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 ieee80211_tdls_oper+0x2e4/0x578 net/mac80211/tdls.c:1397
 rdev_tdls_oper net/wireless/rdev-ops.h:927 [inline]
 nl80211_tdls_oper+0x25c/0x4d4 net/wireless/nl80211.c:12252
 genl_family_rcv_msg_doit+0x204/0x308 net/netlink/genetlink.c:756
 genl_family_rcv_msg net/netlink/genetlink.c:833 [inline]
 genl_rcv_msg+0x44c/0x640 net/netlink/genetlink.c:850
 netlink_rcv_skb+0x218/0x3e8 net/netlink/af_netlink.c:2511
 genl_rcv+0x38/0x50 net/netlink/genetlink.c:861
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x60c/0x814 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6f4/0x9c0 net/netlink/af_netlink.c:1872
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5c8/0x938 net/socket.c:2518
 ___sys_sendmsg net/socket.c:2572 [inline]
 __sys_sendmsg+0x288/0x374 net/socket.c:2601
 __do_sys_sendmsg net/socket.c:2610 [inline]
 __se_sys_sendmsg net/socket.c:2608 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2608
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 21282
hardirqs last  enabled at (21281): [<ffff800008257b34>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline]
hardirqs last  enabled at (21281): [<ffff800008257b34>] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5004
hardirqs last disabled at (21282): [<ffff800011a38ab4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (21272): [<ffff80000fdd2728>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (21266): [<ffff80000fdd26f4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/05/16 14:08 linux-6.1.y c27210688955 a15a64a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_tdls_oper
* Struck through repros no longer work on HEAD.