[syzbot] [wireless?] WARNING in ieee80211_rx_list (3)

[syzbot] [wireless?] WARNING in ieee80211_rx_list (3)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    b6ecc6620376 net: mana: Fix error handling in mana_create_..
git tree:       net
console output: https://syzkaller.appspot.com/x/log.txt?x=15b5ecab980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=996585887acdadb3
dashboard link: https://syzkaller.appspot.com/bug?extid=b4aa2b672b18f1d4dc5f
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/c4574f06e044/disk-b6ecc662.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/305e39881a39/vmlinux-b6ecc662.xz
kernel image: https://storage.googleapis.com/syzbot-assets/14c5c8efb32e/bzImage-b6ecc662.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b4aa2b672b18f1d4dc5f@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 1 PID: 14994 at net/mac80211/rx.c:5375 ieee80211_rx_list+0x2a07/0x3780 net/mac80211/rx.c:5375
Modules linked in:
CPU: 1 UID: 0 PID: 14994 Comm: syz.0.2232 Not tainted 6.11.0-rc5-syzkaller-00192-gb6ecc6620376 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:ieee80211_rx_list+0x2a07/0x3780 net/mac80211/rx.c:5375
Code: 90 e9 21 da ff ff e8 f8 1e 64 f6 e9 17 da ff ff e8 ee 1e 64 f6 e9 0d da ff ff e8 e4 1e 64 f6 e9 03 da ff ff e8 da 1e 64 f6 90 <0f> 0b 90 e9 f5 d9 ff ff e8 cc 1e 64 f6 31 c0 48 89 44 24 60 e9 e5
RSP: 0018:ffffc90000a189a0 EFLAGS: 00010246
RAX: ffffffff8b2f6d56 RBX: 0000000000000000 RCX: ffff888061fc8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a18bf0 R08: ffffffff8b2f4592 R09: 1ffffffff283c708
R10: dffffc0000000000 R11: fffffbfff283c709 R12: dffffc0000000000
R13: ffff88806d804640 R14: ffff88805f0c0e40 R15: ffff88805f0c30c8
FS:  0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f251b600020 CR3: 000000006190e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485
 ieee80211_rx include/net/mac80211.h:5124 [inline]
 ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439
 tasklet_action_common+0x321/0x4d0 kernel/softirq.c:785
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:209
Code: 89 fb e8 23 00 00 00 48 8b 3d dc 76 96 0c 48 89 de 5b e9 83 9d 5b 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 00 d7 03 00 65 8b 15 c0 4a
RSP: 0018:ffffc900039bf290 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffea0001c6b388 RCX: ffff888061fc8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000013115 R08: ffffffff81ea2868 R09: 1ffffd400038d678
R10: dffffc0000000000 R11: fffff9400038d679 R12: ffffea0001c6b3c0
R13: ffffea0001c6b3c0 R14: 0000000000000001 R15: 0000000000000000
 arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
 page_fixed_fake_head include/linux/page-flags.h:203 [inline]
 _compound_head include/linux/page-flags.h:244 [inline]
 __folio_rmap_sanity_checks+0x11f/0x670 include/linux/rmap.h:216
 __folio_remove_rmap mm/rmap.c:1518 [inline]
 folio_remove_rmap_ptes+0x3d/0x490 mm/rmap.c:1599
 zap_present_folio_ptes mm/memory.c:1517 [inline]
 zap_present_ptes mm/memory.c:1576 [inline]
 zap_pte_range mm/memory.c:1618 [inline]
 zap_pmd_range mm/memory.c:1736 [inline]
 zap_pud_range mm/memory.c:1765 [inline]
 zap_p4d_range mm/memory.c:1786 [inline]
 unmap_page_range+0x1b93/0x42c0 mm/memory.c:1807
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
 exit_mmap+0x264/0xc80 mm/mmap.c:3412
 __mmput+0x115/0x390 kernel/fork.c:1345
 exit_mm+0x220/0x310 kernel/exit.c:571
 do_exit+0x9b2/0x27f0 kernel/exit.c:869
 do_group_exit+0x207/0x2c0 kernel/exit.c:1031
 get_signal+0x16a1/0x1740 kernel/signal.c:2917
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6654f7cef9
Code: Unable to access opcode bytes at 0x7f6654f7cecf.
RSP: 002b:00007f6655e5b0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f6655135f88 RCX: 00007f6654f7cef9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6655135f88
RBP: 00007f6655135f80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6655135f8c
R13: 0000000000000000 R14: 00007fffa4ac5d00 R15: 00007fffa4ac5de8
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 fb                	mov    %edi,%ebx
   2:	e8 23 00 00 00       	call   0x2a
   7:	48 8b 3d dc 76 96 0c 	mov    0xc9676dc(%rip),%rdi        # 0xc9676ea
   e:	48 89 de             	mov    %rbx,%rsi
  11:	5b                   	pop    %rbx
  12:	e9 83 9d 5b 00       	jmp    0x5b9d9a
  17:	0f 1f 00             	nopl   (%rax)
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	90                   	nop
  26:	90                   	nop
  27:	90                   	nop
  28:	90                   	nop
  29:	90                   	nop
* 2a:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2e:	48 8b 04 24          	mov    (%rsp),%rax
  32:	65 48 8b 0c 25 00 d7 	mov    %gs:0x3d700,%rcx
  39:	03 00
  3b:	65                   	gs
  3c:	8b                   	.byte 0x8b
  3d:	15                   	.byte 0x15
  3e:	c0                   	.byte 0xc0
  3f:	4a                   	rex.WX


---
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#syz undup

Re: [syzbot] [wireless?] WARNING in ieee80211_rx_list (3)

[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit:    ab75170520d4 Merge tag 'linux-watchdog-6.13-rc6' of git://..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17cf96f8580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=dc863cc90857c683
dashboard link: https://syzkaller.appspot.com/bug?extid=b4aa2b672b18f1d4dc5f
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1773aedf980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=127a5418580000

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-ab751705.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c985fcba8fed/vmlinux-ab751705.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3aa019bd3c16/bzImage-ab751705.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b4aa2b672b18f1d4dc5f@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 3 PID: 34 at net/mac80211/rx.c:5382 ieee80211_rx_list+0x15e0/0x2970 net/mac80211/rx.c:5382
Modules linked in:
CPU: 3 UID: 0 PID: 34 Comm: ksoftirqd/3 Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ieee80211_rx_list+0x15e0/0x2970 net/mac80211/rx.c:5382
Code: f6 51 5b fe 48 85 c0 0f 85 0a 01 00 00 e8 68 8c f0 f6 48 89 df e8 c0 f4 5a fe e8 5b 8c f0 f6 e9 d1 ee ff ff e8 51 8c f0 f6 90 <0f> 0b 90 e9 d8 ee ff ff e8 43 8c f0 f6 44 89 ef e8 db 69 d3 ff 31
RSP: 0018:ffffc900006dfb18 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8aa97661
RDX: ffff88801defc880 RSI: ffffffff8aa989bf RDI: 0000000000000001
RBP: ffff88802e33eb40 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888030b1b0c8
R13: ffff88802e33ec18 R14: ffff888030b18e40 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555b88c6c8 CR3: 000000002ceaa000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ieee80211_rx_napi+0xdd/0x400 net/mac80211/rx.c:5492
 ieee80211_rx include/net/mac80211.h:5166 [inline]
 ieee80211_handle_queued_frames+0xd5/0x130 net/mac80211/main.c:441
 tasklet_action_common+0x251/0x3f0 kernel/softirq.c:811
 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
 run_ksoftirqd kernel/softirq.c:950 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:942
 smpboot_thread_fn+0x661/0xa30 kernel/smpboot.c:164
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>


---
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.

Re: [syzbot] [wireless?] WARNING in ieee80211_rx_list (3)

[syzbot]

syzbot suspects this issue was fixed by commit:

commit d67ca09ca39f9605459959004b28c56899e3bca3
Author: Hangbin Liu <liuhangbin@gmail.com>
Date:   Tue Sep 2 06:55:58 2025 +0000

    hsr: use netdev_master_upper_dev_link() when linking lower ports

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=153bebcd980000
start commit:   b66e19dcf684 Merge branch 'mctp-add-mctp-over-usb-hardware..
git tree:       net-next
kernel config:  https://syzkaller.appspot.com/x/.config?x=cc73f5c6f9d29d57
dashboard link: https://syzkaller.appspot.com/bug?extid=b4aa2b672b18f1d4dc5f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=104ccdb0580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=164d7498580000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: hsr: use netdev_master_upper_dev_link() when linking lower ports

For information about bisection process see: https://goo.gl/tpsmEJ#bisection