[v6.1] WARNING in ath10k_pci_probe

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: fb28aa725e05 Linux 6.1.180
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=11e7acc6580000
kernel config: https://syzkaller.appspot.com/x/.config?x=31dfefc4a14efea3
dashboard link: https://syzkaller.appspot.com/bug?extid=31ec6bc3a92b8aa9f2f7
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/9a6fe2a54d0f/disk-fb28aa72.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/742b23a1d931/vmlinux-fb28aa72.xz
kernel image: https://storage.googleapis.com/syzbot-assets/b3f257c16d2e/bzImage-fb28aa72.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+31ec6b...@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 4365 at drivers/net/wireless/ath/ath10k/pci.c:3599 ath10k_pci_probe+0x117/0x18c0 drivers/net/wireless/ath/ath10k/pci.c:3599
Modules linked in:
CPU: 0 PID: 4365 Comm: kworker/0:7 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: events work_for_cpu_fn
RIP: 0010:ath10k_pci_probe+0x117/0x18c0 drivers/net/wireless/ath/ath10k/pci.c:3599
Code: 44 24 20 90 8b eb 85 48 c7 44 24 18 10 7c eb 85 b0 01 89 44 24 14 31 c9 c7 44 24 30 00 00 00 00 e9 2b 01 00 00 e8 29 cc 96 fb <0f> 0b 41 bf f4 fd ff ff 48 8b 5c 24 50 e9 f0 06 00 00 e8 12 cc 96
RSP: 0018:ffffc90004427ae0 EFLAGS: 00010293
RAX: ffffffff85eb61f7 RBX: 00000000ffffffff RCX: ffff88802f7e5a00
RDX: 0000000000000000 RSI: ffffffff8d607a10 RDI: 00000000ffffffff
RBP: ffffc90004427bd0 R08: ffff88802f7e5a00 R09: 0000000000000009
R10: 00000000000011ac R11: 0000000000000000 R12: ffffffff8ae3a584
R13: ffffc90004427b60 R14: 1ffffffff15c74b0 R15: ffff8881432fa000
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3dfd8c CR3: 00000000567d2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
local_pci_probe+0xc5/0x150 drivers/pci/pci-driver.c:324
work_for_cpu_fn+0x50/0x80 kernel/workqueue.c:5184
process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
kthread+0x29d/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
</TASK>


---
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[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: aa0e49877a2e Linux 6.6.148
git tree: linux-6.6.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1670dbb9580000
kernel config: https://syzkaller.appspot.com/x/.config?x=f0bc3d90c30838b5
dashboard link: https://syzkaller.appspot.com/bug?extid=98d954689e993be4659e

compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8

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

Downloadable assets:

disk image: https://storage.googleapis.com/syzbot-assets/f83b390cfc1f/disk-aa0e4987.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1d4bdb338edd/vmlinux-aa0e4987.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3f57c1d51ee3/bzImage-aa0e4987.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:

Reported-by: syzbot+98d954...@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 789 at drivers/net/wireless/ath/ath10k/pci.c:3596 ath10k_pci_probe+0x6d7/0x1910 drivers/net/wireless/ath/ath10k/pci.c:3596
Modules linked in:
CPU: 0 PID: 789 Comm: kworker/0:2 Not tainted syzkaller #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: events work_for_cpu_fn

RIP: 0010:ath10k_pci_probe+0x6d7/0x1910 drivers/net/wireless/ath/ath10k/pci.c:3596
Code: e8 ae c6 5d fb 45 85 ff 74 4c e8 f4 c2 5d fb 48 89 df 48 c7 c6 60 63 62 8b 31 d2 44 89 f9 e8 50 74 5d 04 eb 79 e8 d9 c2 5d fb <0f> 0b 41 bf f4 fd ff ff e9 71 01 00 00 e8 c7 c2 5d fb 4c 89 ef 48
RSP: 0018:ffffc900039e7a40 EFLAGS: 00010293
RAX: ffffffff8629aea7 RBX: 00000000ffffffff RCX: ffff888021545a00
RDX: 0000000000000000 RSI: ffffffff8dc52990 RDI: 00000000ffffffff
RBP: ffffc900039e7b50 R08: ffff888021545a00 R09: 0000000000000009
R10: 00000000000011ac R11: 0000000000000000 R12: ffffffff8b211864
R13: ffffffff8629a7d0 R14: 1ffff9200073cf58 R15: 1ffffffff164230c

FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 000000110c2d28b5 CR3: 000000004a4d5000 CR4: 00000000003506f0
Call Trace:
<TASK>
local_pci_probe+0xc9/0x150 drivers/pci/pci-driver.c:324
work_for_cpu_fn+0x54/0x80 kernel/workqueue.c:5704
process_one_work kernel/workqueue.c:2657 [inline]
process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734
worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293