[v5.15] WARNING in hrtimer_forward

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: b9d57c40a767 Linux 5.15.203
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14782c36580000
kernel config: https://syzkaller.appspot.com/x/.config?x=353ae28c40b35af5
dashboard link: https://syzkaller.appspot.com/bug?extid=2cc3f015ac9e7d8540d0
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/1b2ee9aebbe3/disk-b9d57c40.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e5742bf875d7/vmlinux-b9d57c40.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5175fafcf12a/bzImage-b9d57c40.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2cc3f0...@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 6442 at kernel/time/hrtimer.c:1032 hrtimer_forward+0x1cc/0x290 kernel/time/hrtimer.c:1032
Modules linked in:
CPU: 0 PID: 6442 Comm: syz.0.715 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:hrtimer_forward+0x1cc/0x290 kernel/time/hrtimer.c:1032
Code: df e8 68 99 55 00 4c 89 33 48 8b 04 24 eb 07 e8 0a 7a 10 00 31 c0 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 f4 79 10 00 <0f> 0b eb e6 48 89 e8 31 d2 49 f7 f4 48 89 04 24 49 89 c5 4d 0f af
RSP: 0018:ffffc90000007bf8 EFLAGS: 00010246
RAX: ffffffff8168ba9c RBX: ffff888073a8f0c0 RCX: ffff88801da6d940
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 00000000007cfaa7 R08: ffffffff8d89f06f R09: 1ffffffff1b13e0d
R10: dffffc0000000000 R11: fffffbfff1b13e0e R12: 0000000000000001
R13: 00000000061a8000 R14: 1ffff1100e751e1b R15: ffff888073a8f0d8
FS: 00007f3cacefa6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c34ebcc CR3: 000000004f08f000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
<IRQ>
hrtimer_forward_now include/linux/hrtimer.h:508 [inline]
mac80211_hwsim_beacon+0x149/0x180 drivers/net/wireless/mac80211_hwsim.c:1874
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x4f2/0xb70 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
handle_softirqs+0x339/0x830 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:lock_is_held include/linux/lockdep.h:287 [inline]
RIP: 0010:rcu_read_lock_held+0x25/0x40 kernel/rcu/update.c:311
Code: 0f 1f 44 00 00 53 e8 ca b1 58 08 85 c0 74 26 31 db e8 7f b2 00 00 84 c0 74 20 e8 d6 b3 00 00 84 c0 74 17 48 c7 c7 20 eb 31 8c <be> ff ff ff ff 5b e9 50 ae 58 08 bb 01 00 00 00 89 d8 5b c3 0f 1f
RSP: 0018:ffffc9000320f9b0 EFLAGS: 00000202
RAX: 1ffffffff1864501 RBX: 0000000000000000 RCX: d140e3e9c2739d00
RDX: 0000000000000002 RSI: ffffffff8a79fe20 RDI: ffffffff8c31eb20
RBP: ffffc9000320fab8 R08: dffffc0000000000 R09: 1ffffffff203aa18
R10: dffffc0000000000 R11: fffffbfff203aa19 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffffff8c1edb40
BPF_PROG_RUN_ARRAY include/linux/bpf.h:1432 [inline]
trace_call_bpf+0x19c/0x5b0 kernel/trace/bpf_trace.c:127
perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10016
perf_trace_lock_acquire+0x340/0x3e0 include/trace/events/lock.h:13
trace_lock_acquire include/trace/events/lock.h:13 [inline]
lock_acquire+0x3d7/0x400 kernel/locking/lockdep.c:5594
__fs_reclaim_acquire mm/page_alloc.c:4580 [inline]
fs_reclaim_acquire+0x6d/0x100 mm/page_alloc.c:4594
might_alloc include/linux/sched/mm.h:206 [inline]
slab_pre_alloc_hook+0x20/0xc0 mm/slab.h:492
slab_alloc_node mm/slub.c:3139 [inline]
slab_alloc mm/slub.c:3233 [inline]
kmem_cache_alloc+0x3d/0x290 mm/slub.c:3238
sock_alloc_inode+0x17/0xb0 net/socket.c:305
alloc_inode fs/inode.c:261 [inline]
new_inode_pseudo+0x5f/0x210 fs/inode.c:1001
sock_alloc net/socket.c:628 [inline]
__sock_create+0x129/0x900 net/socket.c:1459
sock_create net/socket.c:1551 [inline]
__sys_socket+0xe2/0x170 net/socket.c:1593
__do_sys_socket net/socket.c:1602 [inline]
__se_sys_socket net/socket.c:1600 [inline]
__x64_sys_socket+0x76/0x80 net/socket.c:1600
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3caeca0819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3cacefa028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f3caef19fa0 RCX: 00007f3caeca0819
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007f3caed36c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3caef1a038 R14: 00007f3caef19fa0 R15: 00007ffc0d8d1df8
</TASK>
----------------
Code disassembly (best guess):
0: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
5: 53 push %rbx
6: e8 ca b1 58 08 call 0x858b1d5
b: 85 c0 test %eax,%eax
d: 74 26 je 0x35
f: 31 db xor %ebx,%ebx
11: e8 7f b2 00 00 call 0xb295
16: 84 c0 test %al,%al
18: 74 20 je 0x3a
1a: e8 d6 b3 00 00 call 0xb3f5
1f: 84 c0 test %al,%al
21: 74 17 je 0x3a
23: 48 c7 c7 20 eb 31 8c mov $0xffffffff8c31eb20,%rdi
* 2a: be ff ff ff ff mov $0xffffffff,%esi <-- trapping instruction
2f: 5b pop %rbx
30: e9 50 ae 58 08 jmp 0x858ae85
35: bb 01 00 00 00 mov $0x1,%ebx
3a: 89 d8 mov %ebx,%eax
3c: 5b pop %rbx
3d: c3 ret
3e: 0f .byte 0xf
3f: 1f (bad)


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