------------[ cut here ]------------
NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out
WARNING: CPU: 1 PID: 5397 at net/sched/sch_generic.c:478 dev_watchdog+0x8d3/0xab0 net/sched/sch_generic.c:477
Modules linked in:
CPU: 1 PID: 5397 Comm: syz.1.196 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:dev_watchdog+0x8d3/0xab0 net/sched/sch_generic.c:477
Code: f9 c6 05 11 04 62 05 01 4c 8b 74 24 28 4c 89 f7 e8 22 4c e4 ff 48 c7 c7 c0 a8 01 8b 4c 89 f6 48 89 c2 44 89 e1 e8 5d 3c aa 01 <0f> 0b e9 31 fe ff ff e8 81 df 83 f9 0f 0b e9 13 fe ff ff 44 89 e1
RSP: 0018:ffffc90000dd0b08 EFLAGS: 00010246
RAX: 469484eb0aed1d00 RBX: dffffc0000000000 RCX: ffff88807d8e9dc0
RDX: 0000000000000100 RSI: 0000000080000102 RDI: 0000000000000000
RBP: ffff888023786868 R08: dffffc0000000000 R09: fffff520001ba0c5
R10: fffff520001ba0c5 R11: 1ffff920001ba0c4 R12: 0000000000000000
R13: ffff88801eb46540 R14: ffff88801eb46000 R15: dffffc0000000000
FS:  00007feaf36f46c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7793477440 CR3: 0000000050154000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x16c/0x530 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x525/0x7c0 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 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:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x7b/0x290 mm/kasan/generic.c:189
Code: 5c 37 ff 48 c1 eb 03 4e 8d 14 3b 4d 89 d6 4d 29 ce 49 83 fe 10 7f 26 4d 85 f6 0f 84 39 01 00 00 48 f7 d3 4c 01 db 41 80 39 00 <0f> 85 c1 01 00 00 49 ff c1 48 ff c3 75 ee e9 1c 01 00 00 44 89 cb
RSP: 0018:ffffc900037af6d8 EFLAGS: 00000246
RAX: ffffffff819dea01 RBX: ffffffffffffffff RCX: ffffffff819deac4
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea00014b0c00
RBP: dffffc0000000000 R08: dffffc0000000000 R09: fffff94000296180
R10: fffff94000296181 R11: 1ffffd4000296180 R12: ffffc900037af828
R13: ffffea00014b0c08 R14: 0000000000000001 R15: dffffc0000000001
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
 PageUptodate include/linux/page-flags.h:536 [inline]
 next_uptodate_page+0x4b4/0x8b0 mm/filemap.c:3269
 next_map_page mm/filemap.c:3296 [inline]
 filemap_map_pages+0xebd/0x1390 mm/filemap.c:3352
 do_fault_around mm/memory.c:4243 [inline]
 do_read_fault mm/memory.c:4258 [inline]
 do_fault mm/memory.c:4392 [inline]
 handle_pte_fault mm/memory.c:4650 [inline]
 __handle_mm_fault mm/memory.c:4785 [inline]
 handle_mm_fault+0x2580/0x43c0 mm/memory.c:4883
 faultin_page mm/gup.c:976 [inline]
 __get_user_pages+0x93e/0x11c0 mm/gup.c:1197
 populate_vma_page_range+0x213/0x290 mm/gup.c:1529
 __mm_populate+0x26f/0x3a0 mm/gup.c:1638
 mm_populate include/linux/mm.h:2646 [inline]
 vm_mmap_pgoff+0x203/0x2b0 mm/util.c:556
 ksys_mmap_pgoff+0x140/0x780 mm/mmap.c:1635
 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: 0033:0x7feaf548cba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007feaf36f4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007feaf56d3fa0 RCX: 00007feaf548cba9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007feaf550fe19 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007feaf56d4038 R14: 00007feaf56d3fa0 R15: 00007ffc20f39608
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	ff 48 c1             	decl   -0x3f(%rax)
   3:	eb 03                	jmp    0x8
   5:	4e 8d 14 3b          	lea    (%rbx,%r15,1),%r10
   9:	4d 89 d6             	mov    %r10,%r14
   c:	4d 29 ce             	sub    %r9,%r14
   f:	49 83 fe 10          	cmp    $0x10,%r14
  13:	7f 26                	jg     0x3b
  15:	4d 85 f6             	test   %r14,%r14
  18:	0f 84 39 01 00 00    	je     0x157
  1e:	48 f7 d3             	not    %rbx
  21:	4c 01 db             	add    %r11,%rbx
  24:	41 80 39 00          	cmpb   $0x0,(%r9)
* 28:	0f 85 c1 01 00 00    	jne    0x1ef <-- trapping instruction
  2e:	49 ff c1             	inc    %r9
  31:	48 ff c3             	inc    %rbx
  34:	75 ee                	jne    0x24
  36:	e9 1c 01 00 00       	jmp    0x157
  3b:	44 89 cb             	mov    %r9d,%ebx