syzbot


WARNING in ieee80211_free_keys

Status: upstream: reported on 2025/11/02 09:35
Reported-by: syzbot+41edbe8e08e6d026c1c8@syzkaller.appspotmail.com
First crash: 50d, last: 50d
Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in ieee80211_free_keys (2) wireless -1 2 83d 135d 0/29 upstream: reported on 2025/08/09 10:09
upstream WARNING in ieee80211_free_keys wireless -1 7 278d 299d 0/29 auto-obsoleted due to no activity on 2025/06/27 11:28
linux-5.15 WARNING in ieee80211_free_keys -1 1 227d 227d 0/3 auto-obsoleted due to no activity on 2025/08/17 18:26

Sample crash report:
tipc: Resetting bearer <eth:syzkaller0>
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10909 at net/mac80211/key.c:1165 ieee80211_free_keys+0x4c0/0x5b0 net/mac80211/key.c:1164
Modules linked in:
CPU: 1 PID: 10909 Comm: syz.1.1176 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:ieee80211_free_keys+0x4c0/0x5b0 net/mac80211/key.c:1164
Code: 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 80 00 00 00 75 7f 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b0 42 95 f7 <0f> 0b e9 44 fe ff ff e8 a4 42 95 f7 e9 31 fe ff ff 44 89 f1 80 e1
RSP: 0018:ffffc900042376a0 EFLAGS: 00010283
RAX: ffffffff89f04ce0 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc9000d4fa000 RSI: 00000000000058b4 RDI: 00000000000058b5
RBP: ffffc90004237770 R08: ffffffff90da85f7 R09: 1ffffffff21b50be
R10: dffffc0000000000 R11: fffffbfff21b50bf R12: 0000000000000001
R13: ffff88805dd10c80 R14: 0000000000000002 R15: ffff8880775d29e8
FS:  00007fcb60fde6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000028196000 CR4: 00000000003506e0
DR0: 0000000000000004 DR1: 000000000000e613 DR2: 0000100000000403
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ieee80211_do_stop+0xec8/0x1db0 net/mac80211/iface.c:605
 ieee80211_stop+0x436/0x4a0 net/mac80211/iface.c:795
 __dev_close_many+0x1c3/0x2a0 net/core/dev.c:1590
 __dev_close net/core/dev.c:1602 [inline]
 __dev_change_flags+0x2c4/0x6a0 net/core/dev.c:8683
 dev_change_flags+0x88/0x1a0 net/core/dev.c:8757
 dev_ifsioc+0x6a7/0xe20 net/core/dev_ioctl.c:529
 dev_ioctl+0x7e2/0x1170 net/core/dev_ioctl.c:786
 sock_do_ioctl+0x226/0x2f0 net/socket.c:1236
 sock_ioctl+0x623/0x7a0 net/socket.c:1341
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fcb6018efc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcb60fde038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fcb603e5fa0 RCX: 00007fcb6018efc9
RDX: 0000200000000080 RSI: 0000000000008914 RDI: 0000000000000004
RBP: 00007fcb60211f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcb603e6038 R14: 00007fcb603e5fa0 R15: 00007ffd909a76f8
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/11/02 09:35 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in ieee80211_free_keys
2025/11/02 09:34 linux-6.6.y e5bbb12db2c7 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in ieee80211_free_keys
* Struck through repros no longer work on HEAD.