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WARNING in ieee80211_free_ack_frame (2)

Status: upstream: reported C repro on 2021/11/15 07:38
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+ac648b0525be1feba506@syzkaller.appspotmail.com
First crash: 1421d, last: 5d10h
Cause bisection: failed (error log, bisect log)
  
Fix bisection: fixed by (bisect log) :
commit 1661372c912d1966e21e0cb5463559984df8249b
Author: Paul Moore <paul@paul-moore.com>
Date: Tue Feb 7 22:06:51 2023 +0000

  lsm: move the program execution hook comments to security/security.c

  
▶ ▼ Discussions (10)
Title Replies (including bot) Last reply
[syzbot] Monthly wireless report (Sep 2024) 0 (1) 2024/09/12 14:24
[syzbot] Monthly wireless report (Aug 2024) 0 (1) 2024/08/13 08:54
[syzbot] Monthly wireless report (Jul 2024) 0 (1) 2024/07/12 10:05
[syzbot] Monthly wireless report (Jun 2024) 0 (1) 2024/06/10 12:42
[PATCH] wifi: mac80211: handle tasklet frames before stopping 2 (2) 2024/05/15 11:57
[syzbot] Monthly wireless report (May 2024) 0 (1) 2024/05/06 13:18
[syzbot] Monthly wireless report (Mar 2024) 0 (1) 2024/03/05 11:10
[syzbot] Monthly wireless report (Feb 2024) 0 (1) 2024/02/03 08:34
[syzbot] Monthly wireless report (Jan 2024) 0 (1) 2024/01/03 10:47
[syzbot] WARNING in ieee80211_free_ack_frame (2) 1 (4) 2023/07/13 19:00
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in ieee80211_free_ack_frame -1 1 60d 60d 0/3 upstream: reported on 2025/08/03 17:18
linux-4.19 WARNING in ieee80211_free_ack_frame -1 C error 97 956d 1821d 0/1 upstream: reported C repro on 2020/10/07 07:47
upstream WARNING in ieee80211_free_ack_frame wireless -1 syz done 117 1427d 1821d 20/29 fixed on 2021/11/10 00:50
linux-5.15 WARNING in ieee80211_free_ack_frame origin:upstream -1 C error 1 75d 921d 0/3 upstream: reported C repro on 2023/03/26 11:43
▶ ▼ Last patch testing requests (11)
Created Duration User Patch Repo Result
2025/09/14 12:01 23m retest repro net report log
2025/09/14 11:09 23m retest repro upstream OK log
2025/09/14 11:09 23m retest repro net-next error
2025/02/09 01:11 17m retest repro upstream report log
2025/01/25 20:51 15m retest repro net report log
2025/01/25 20:51 18m retest repro net-next report log
2024/09/27 12:00 16m retest repro upstream report log
2024/08/31 09:07 16m retest repro upstream report log
2024/06/26 10:10 17m retest repro upstream report log
2024/06/12 06:33 19m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2023/07/14 14:25 19m nogikh@google.com https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 08e30833f86ba25945e416b9f372791aacfef153 report log
▶ ▼ Fix bisection attempts (2)
Created Duration User Patch Repo Result
2023/07/10 09:58 6h22m (2) bisect fix net OK (1) job log
2023/05/22 05:16 29m bisect fix net-next OK (0) job log log

Sample crash report:
------------[ cut here ]------------
Have pending ack frames!
WARNING: CPU: 0 PID: 11 at net/mac80211/main.c:1511 ieee80211_free_ack_frame+0x44/0x50 net/mac80211/main.c:1511
Modules linked in:
CPU: 0 PID: 11 Comm: kworker/u4:0 Not tainted 6.5.0-syzkaller-11329-g708283abf896 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x44/0x50 net/mac80211/main.c:1511
Code: f7 48 89 df be 02 00 00 00 e8 d8 ab 6e fe 31 c0 5b c3 e8 5f 04 52 f7 c6 05 78 bd 49 04 01 48 c7 c7 60 34 12 8c e8 6c 8a 18 f7 <0f> 0b eb d3 0f 1f 84 00 00 00 00 00 e8 3b 04 52 f7 f3 0f 1e fa e8
RSP: 0018:ffffc90000107890 EFLAGS: 00010246
RAX: 1e579929fd113c00 RBX: ffff888070c78140 RCX: ffff88801664bb80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000107998 R08: ffffffff81541672 R09: 1ffff1101730516a
R10: dffffc0000000000 R11: ffffed101730516b R12: ffffc90000107900
R13: dffffc0000000000 R14: ffff8880723f150c R15: ffff8880206a42f0
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbb7e3a2100 CR3: 0000000071d6d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 idr_for_each+0x1de/0x2c0 lib/idr.c:208
 ieee80211_free_hw+0xdc/0x490 net/mac80211/main.c:1529
 mac80211_hwsim_del_radio+0x329/0x4a0 drivers/net/wireless/virtual/mac80211_hwsim.c:5411
 hwsim_exit_net+0x5bc/0x660 drivers/net/wireless/virtual/mac80211_hwsim.c:6285
 ops_exit_list net/core/net_namespace.c:170 [inline]
 cleanup_net+0x6d2/0xb80 net/core/net_namespace.c:614
 process_one_work+0x781/0x1130 kernel/workqueue.c:2630
 process_scheduled_works kernel/workqueue.c:2703 [inline]
 worker_thread+0xabf/0x1060 kernel/workqueue.c:2784
 kthread+0x2b8/0x350 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>

Crashes (175):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/05 00:19 upstream 708283abf896 8bc9053e .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in ieee80211_free_ack_frame
2024/04/15 03:32 net f99c5f563c17 c8349e48 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_free_ack_frame
2023/03/26 12:00 net-next bc77f7318da8 fbf0499a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_free_ack_frame
2023/03/26 09:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e8d018dd0257 fbf0499a .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in ieee80211_free_ack_frame
2023/03/26 08:21 net 33189f0a94b9 fbf0499a .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_free_ack_frame
2025/08/31 09:33 upstream c8bc81a52d5a 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ieee80211_free_ack_frame
2025/08/14 05:28 upstream 91325f31afc1 22ec1469 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ieee80211_free_ack_frame
2025/07/28 14:44 upstream 038d61fd6422 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ieee80211_free_ack_frame
2025/07/20 18:56 upstream f4a40a4282f4 7117feec .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in ieee80211_free_ack_frame
2025/07/16 05:06 upstream 155a3c003e55 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in ieee80211_free_ack_frame
2025/04/20 04:52 upstream 8560697b23dc 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in ieee80211_free_ack_frame
2025/03/24 04:47 upstream 586de92313fc 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ieee80211_free_ack_frame
2025/03/02 16:13 upstream ece144f151ac c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in ieee80211_free_ack_frame
2025/02/17 02:29 upstream ad1b832bf1cf 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ieee80211_free_ack_frame
2025/01/11 20:50 upstream 77a903cd8e5a 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in ieee80211_free_ack_frame
2024/12/31 04:28 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ieee80211_free_ack_frame
2024/12/10 12:44 upstream 7cb1b4663150 cfc402b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ieee80211_free_ack_frame
2024/11/23 00:39 upstream 28eb75e178d3 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in ieee80211_free_ack_frame
2024/11/12 00:42 upstream 2d5404caa8c7 97fe5517 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in ieee80211_free_ack_frame
2024/11/10 23:22 upstream a9cda7c0ffed 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ieee80211_free_ack_frame
2023/11/30 22:32 upstream 3b47bc037bd4 f819d6f7 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in ieee80211_free_ack_frame
2025/09/21 07:11 upstream 3b08f56fbbb9 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ieee80211_free_ack_frame
2025/08/23 14:20 upstream 6debb6904172 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ieee80211_free_ack_frame
2025/07/17 10:49 upstream e2291551827f 44f8051e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ieee80211_free_ack_frame
2025/07/11 11:37 upstream bc9ff192a6c9 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ieee80211_free_ack_frame
2025/06/14 04:28 upstream 02adc1490e6d 0e8da31f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ieee80211_free_ack_frame
2025/04/20 02:55 upstream 8560697b23dc 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ieee80211_free_ack_frame
2025/03/08 12:37 upstream 21e4543a2e2f 7e3bd60d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ieee80211_free_ack_frame
2025/01/09 21:55 upstream eea6e4b4dfb8 40f46913 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ieee80211_free_ack_frame
2024/12/31 06:20 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ieee80211_free_ack_frame
2025/08/05 03:08 upstream d632ab86aff2 f5bcc8dc .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_free_ack_frame
2025/08/03 16:13 upstream a6923c06a3b2 7368264b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_free_ack_frame
2025/06/23 23:19 upstream 78f4e737a53e 1a7fb460 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_free_ack_frame
2025/05/30 22:27 upstream 8477ab143069 3d2f584d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_free_ack_frame
2025/05/25 19:42 upstream d0c22de9995b 2d4582d0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_free_ack_frame
2025/02/23 14:09 upstream 27102b38b8ca d34966d1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_free_ack_frame
2024/12/28 23:32 upstream 059dd502b263 d3ccff63 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_free_ack_frame
2024/11/15 13:09 upstream cfaaa7d010d1 eeafb645 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_free_ack_frame
2024/11/14 21:22 upstream cfaaa7d010d1 77f3eeb7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_free_ack_frame
2025/09/27 19:35 upstream fec734e8d564 001c9061 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ieee80211_free_ack_frame
2025/07/04 11:29 upstream 4c06e63b9203 76ad128c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ieee80211_free_ack_frame
2025/04/06 13:36 upstream f4d2ef48250a 1c65791e .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ieee80211_free_ack_frame
2025/03/17 09:16 upstream 4701f33a1070 948c34e4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ieee80211_free_ack_frame
2025/02/15 19:01 upstream 7ff71e6d9239 40a34ec9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ieee80211_free_ack_frame
2025/02/09 08:52 upstream 9946eaf552b1 ef44b750 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ieee80211_free_ack_frame
2021/11/11 07:31 upstream 89d714ab6043 75b04091 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING in ieee80211_free_ack_frame
2025/09/23 11:47 net 3d3aa9472c6d 0ac7291c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_free_ack_frame
2025/09/18 20:08 net 4c05c7ed880f e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_free_ack_frame
2025/07/19 08:40 net 96e056ffba91 7117feec .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_free_ack_frame
2025/05/24 04:12 net 5cdb2c77c4c3 ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_free_ack_frame
2024/12/17 03:26 net c8eb0c3ffde6 f93b2b55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_free_ack_frame
2024/12/01 14:31 net c44daa7e3c73 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_free_ack_frame
2025/06/29 12:08 net-next 20a0c20f82ac fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_free_ack_frame
2025/06/18 09:13 net-next d74520f39cdb e77fae15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_free_ack_frame
2025/05/19 13:38 net-next a8ae8a0e848e f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_free_ack_frame
2025/04/30 02:06 net-next ff61a4a5dfc2 aeb6ec69 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_free_ack_frame
2025/03/14 00:28 net-next 89d75c4c67ac e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_free_ack_frame
2024/12/26 17:41 net-next 9268abe611b0 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_free_ack_frame
2024/11/06 23:36 net-next a84e8c05f583 df3dc63b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_free_ack_frame
2025/08/01 07:29 linux-next 84b92a499e7e 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in ieee80211_free_ack_frame
2025/06/30 15:44 linux-next 1343433ed389 fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in ieee80211_free_ack_frame
2024/02/08 11:07 linux-next b1d3a0e70c38 6404acf9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ieee80211_free_ack_frame
2025/05/06 09:30 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e0f4c8dd9d2d ae98e6b9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in ieee80211_free_ack_frame
2024/11/21 16:53 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 4b25d554 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in ieee80211_free_ack_frame
* Struck through repros no longer work on HEAD.