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general protection fault in ieee80211_put_srates_elem

Status: upstream: reported C repro on 2026/01/19 13:42
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+81cd9dc1596563141d19@syzkaller.appspotmail.com
First crash: 125d, last: 33d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ ✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision Error
ff2ba10f-2f96-4f82-92df-4bae42fd6a9a assessment-security 💥 general protection fault in ieee80211_put_srates_elem 2026/05/14 11:53 2026/05/14 11:53 2026/05/14 11:54 6ccb967e465e832a7bfd7a116ad00d52a0923a5d failed to run ["git" "pull" "origin" "HEAD" "--depth=1" "--allow-unrelated-histories"]: exit status 128 From /app/workdir/repo/linux * branch HEAD -> FETCH_HEAD Updating files: 22% (21078/92197) Updating files: 23% (21206/92197) Updating files: 24% (22128/92197) Updating files: 25% (23050/92197) Updating files: 26% (23972/92197) Updating files: 27% (24894/92197) Updating files: 28% (25816/92197) Updating files: 29% (26738/92197) Updating files: 30% (27660/92197) Updating files: 31% (28582/92197) Updating files: 32% (29504/92197) Updating files: 32% (29798/92197) Updating files: 33% (30426/92197) Updating files: 34% (31347/92197) Updating files: 35% (32269/92197) Updating files: 36% (33191/92197) error: unable to write file drivers/crypto/tegra/tegra-se-hash.c error: unable to write file drivers/crypto/tegra/tegra-se-key.c error: unable to write file drivers/crypto/tegra/tegra-se-main.c error: unable to write file drivers/crypto/tegra/tegra-se.h fatal: cannot create directory at 'drivers/crypto/ti': No space left on device
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[PATCH] wifi: mac80211: fix NULL pointer dereference in ieee80211_mesh_build_beacon() 2 (2) 2026/01/20 08:12
[syzbot] [wireless?] general protection fault in ieee80211_put_srates_elem 1 (3) 2026/01/19 14:59
▶ ▼ Last patch testing requests (11)
Created Duration User Patch Repo Result
2026/05/04 19:07 39m retest repro net OK log
2026/05/04 19:07 39m retest repro net OK log
2026/05/04 19:07 32m retest repro net OK log
2026/05/04 11:10 39m retest repro linux-next OK log
2026/05/04 11:10 30m retest repro linux-next OK log
2026/05/04 11:10 40m retest repro linux-next OK log
2026/05/04 11:10 30m retest repro linux-next OK log
2026/04/14 13:57 17m retest repro upstream error
2026/04/14 13:57 17m retest repro upstream error
2026/04/14 13:57 21m retest repro upstream report log
2026/01/19 14:38 20m aha310510@gmail.com patch upstream OK log

Sample crash report:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 0 UID: 0 PID: 3108 Comm: kworker/u4:16 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:ieee80211_put_srates_elem+0x42/0x640 net/mac80211/util.c:3272
Code: 18 89 54 24 28 48 89 f3 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 ae 3f e3 f6 48 89 5c 24 38 4c 8d 6b 18 4d 89 ef 49 c1 ef 03 <43> 0f b6 04 27 84 c0 0f 85 19 05 00 00 41 8b 5d 00 31 ff 89 de e8
RSP: 0018:ffffc900029b77b8 EFLAGS: 00010206
RAX: ffffffff8addc7b2 RBX: 0000000000000000 RCX: ffff88803a764980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88801b3c3b40
RBP: 0000000000000001 R08: 0000000000000001 R09: ffffffff8df41aa0
R10: dffffc0000000000 R11: ffffed10082300db R12: dffffc0000000000
R13: 0000000000000018 R14: ffff88801b3c3b40 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9afd2e4e9c CR3: 00000000548c5000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ieee80211_mesh_build_beacon+0xa83/0x1b50 net/mac80211/mesh.c:1093
 ieee80211_mesh_rebuild_beacon+0xc7/0x170 net/mac80211/mesh.c:1147
 ieee80211_mesh_finish_csa+0x131/0x210 net/mac80211/mesh.c:1542
 ieee80211_set_after_csa_beacon net/mac80211/cfg.c:4085 [inline]
 __ieee80211_csa_finalize net/mac80211/cfg.c:4133 [inline]
 ieee80211_csa_finalize+0x633/0x1150 net/mac80211/cfg.c:4155
 cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438
 process_one_work kernel/workqueue.c:3257 [inline]
 process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ieee80211_put_srates_elem+0x42/0x640 net/mac80211/util.c:3272
Code: 18 89 54 24 28 48 89 f3 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 ae 3f e3 f6 48 89 5c 24 38 4c 8d 6b 18 4d 89 ef 49 c1 ef 03 <43> 0f b6 04 27 84 c0 0f 85 19 05 00 00 41 8b 5d 00 31 ff 89 de e8
RSP: 0018:ffffc900029b77b8 EFLAGS: 00010206
RAX: ffffffff8addc7b2 RBX: 0000000000000000 RCX: ffff88803a764980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88801b3c3b40
RBP: 0000000000000001 R08: 0000000000000001 R09: ffffffff8df41aa0
R10: dffffc0000000000 R11: ffffed10082300db R12: dffffc0000000000
R13: 0000000000000018 R14: ffff88801b3c3b40 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fec6a208e9c CR3: 000000004224e000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
   0:	18 89 54 24 28 48    	sbb    %cl,0x48282454(%rcx)
   6:	89 f3                	mov    %esi,%ebx
   8:	49 89 fe             	mov    %rdi,%r14
   b:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  12:	fc ff df
  15:	e8 ae 3f e3 f6       	call   0xf6e33fc8
  1a:	48 89 5c 24 38       	mov    %rbx,0x38(%rsp)
  1f:	4c 8d 6b 18          	lea    0x18(%rbx),%r13
  23:	4d 89 ef             	mov    %r13,%r15
  26:	49 c1 ef 03          	shr    $0x3,%r15
* 2a:	43 0f b6 04 27       	movzbl (%r15,%r12,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 19 05 00 00    	jne    0x550
  37:	41 8b 5d 00          	mov    0x0(%r13),%ebx
  3b:	31 ff                	xor    %edi,%edi
  3d:	89 de                	mov    %ebx,%esi
  3f:	e8                   	.byte 0xe8

Crashes (15):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/20 05:49 upstream 54e82e93ca93 d1b870e1 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in ieee80211_put_srates_elem
2026/01/19 01:13 upstream 54e82e93ca93 d1b870e1 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in ieee80211_put_srates_elem
2026/01/19 23:27 upstream 54e82e93ca93 d1b870e1 .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in ieee80211_put_srates_elem
2026/01/19 17:59 upstream 54e82e93ca93 d1b870e1 .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in ieee80211_put_srates_elem
2026/01/19 12:20 upstream 54e82e93ca93 d1b870e1 .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in ieee80211_put_srates_elem
2026/01/19 06:50 upstream 54e82e93ca93 d1b870e1 .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in ieee80211_put_srates_elem
2026/01/18 18:37 upstream 54e82e93ca93 d1b870e1 .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in ieee80211_put_srates_elem
2026/01/18 05:11 upstream 54e82e93ca93 d1b870e1 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root general protection fault in ieee80211_put_srates_elem
2026/04/20 06:50 net 0cf004ffb61c 303e2802 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in ieee80211_put_srates_elem
2026/04/20 04:17 net 0cf004ffb61c 303e2802 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in ieee80211_put_srates_elem
2026/04/19 22:49 net 0cf004ffb61c 303e2802 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in ieee80211_put_srates_elem
2026/01/20 08:24 linux-next d08c85ac8894 d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in ieee80211_put_srates_elem
2026/01/19 19:44 linux-next 46fe65a2c28e d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in ieee80211_put_srates_elem
2026/01/19 08:31 linux-next 46fe65a2c28e d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in ieee80211_put_srates_elem
2026/01/19 02:54 linux-next 46fe65a2c28e d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce general protection fault in ieee80211_put_srates_elem
* Struck through repros no longer work on HEAD.