Oops: general protection fault, probably for non-canonical address 0xdffffc0000000038: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000001c0-0x00000000000001c7]
CPU: 0 UID: 0 PID: 5922 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
Workqueue: mld mld_dad_work
RIP: 0010:__queue_work+0xa2/0xf90 kernel/workqueue.c:2269
Code: 11 31 ff 89 ee e8 4e f4 37 00 85 ed 0f 85 ef 0c 00 00 e8 01 f0 37 00 4d 8d b7 c0 01 00 00 4c 89 f0 48 c1 e8 03 48 89 44 24 28 <42> 0f b6 04 20 84 c0 0f 85 22 0d 00 00 4c 89 34 24 41 8b 2e 89 ee
RSP: 0018:ffffc90000006fb8 EFLAGS: 00010002
RAX: 0000000000000038 RBX: 0000000000000008 RCX: 0000000000040000
RDX: ffffc90002171000 RSI: 00000000000007bc RDI: 00000000000007bd
RBP: 0000000000000000 R08: ffff88813fe32017 R09: 1ffff11027fc6402
R10: dffffc0000000000 R11: ffffed1027fc6403 R12: dffffc0000000000
R13: ffff88813fe32010 R14: 00000000000001c0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888125063000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33c10ff8 CR3: 000000007c266000 CR4: 00000000003526f0
Call Trace:
queue_work_on+0x106/0x1d0 kernel/workqueue.c:2405
puts_queue+0xa3/0xe0 drivers/tty/vt/keyboard.c:334
k_fn+0x7c/0xd0 drivers/tty/vt/keyboard.c:763
kbd_keycode drivers/tty/vt/keyboard.c:1497 [inline]
kbd_event+0x2ec1/0x40d0 drivers/tty/vt/keyboard.c:1515
input_handle_events_default+0xd4/0x1a0 drivers/input/input.c:2541
input_pass_values+0x288/0x890 drivers/input/input.c:128
input_event_dispose+0x3e5/0x6b0 drivers/input/input.c:353
input_event+0x89/0xe0 drivers/input/input.c:396
hidinput_hid_event+0x1487/0x1e60 drivers/hid/hid-input.c:1747
hid_process_event+0x4be/0x620 drivers/hid/hid-core.c:1565
hid_input_array_field+0x297/0x5f0 drivers/hid/hid-core.c:1669
hid_process_report drivers/hid/hid-core.c:1719 [inline]
hid_report_raw_event+0xdd7/0x1720 drivers/hid/hid-core.c:2074
__hid_input_report drivers/hid/hid-core.c:2144 [inline]
hid_input_report+0x44b/0x580 drivers/hid/hid-core.c:2166
hid_irq_in+0x47e/0x6d0 drivers/hid/usbhid/hid-core.c:286
__usb_hcd_giveback_urb+0x376/0x540 drivers/usb/core/hcd.c:1657
dummy_timer+0xbbd/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1995
__run_hrtimer kernel/time/hrtimer.c:1785 [inline]
__hrtimer_run_queues+0x529/0xc30 kernel/time/hrtimer.c:1849
hrtimer_run_softirq+0x182/0x5a0 kernel/time/hrtimer.c:1866
handle_softirqs+0x22a/0x7c0 kernel/softirq.c:626
__do_softirq kernel/softirq.c:660 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0x5f/0x150 kernel/softirq.c:727
irq_exit_rcu+0x9/0x30 kernel/softirq.c:743
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:clear_pages arch/x86/include/asm/page_64.h:103 [inline]
RIP: 0010:clear_page arch/x86/include/asm/page_64.h:114 [inline]
RIP: 0010:clear_highpage_kasan_tagged include/linux/highmem.h:344 [inline]
RIP: 0010:kernel_init_pages mm/page_alloc.c:1265 [inline]
RIP: 0010:post_alloc_hook+0x1b8/0x280 mm/page_alloc.c:1881
Code: 8e 48 c1 ed 03 49 c7 c6 c8 8e 2a 8e 49 c1 ee 03 eb 2f 48 8b 3d 81 e7 0a 0c 49 c1 e5 06 4c 29 ef 4c 01 e7 b9 00 10 00 00 31 c0 aa 0f 1f 44 00 00 49 81 c4 00 10 00 00 49 ff cf 0f 84 eb fe ff
RSP: 0018:ffffc9000497f378 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000001000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88802b481000
RBP: 1ffffffff1c551db R08: ffffffff903219b7 R09: 0000000000000000
R10: ffffed1005690000 R11: fffffbfff2064337 R12: fffa80002b481000
R13: fffa800000000000 R14: 1ffffffff1c551d9 R15: 0000000000000007
prep_new_page mm/page_alloc.c:1891 [inline]
get_page_from_freelist+0x24dc/0x2580 mm/page_alloc.c:3956
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5244
alloc_slab_page mm/slub.c:3235 [inline]
allocate_slab+0x7b/0x660 mm/slub.c:3408
new_slab mm/slub.c:3466 [inline]
refill_objects+0x33a/0x3d0 mm/slub.c:7077
refill_sheaf mm/slub.c:2784 [inline]
__pcs_replace_empty_main+0x2b9/0x620 mm/slub.c:4529
alloc_from_pcs mm/slub.c:4632 [inline]
slab_alloc_node mm/slub.c:4766 [inline]
__do_kmalloc_node mm/slub.c:5169 [inline]
__kmalloc_node_track_caller_noprof+0x572/0x7b0 mm/slub.c:5278
kmalloc_reserve net/core/skbuff.c:634 [inline]
__alloc_skb+0x2c1/0x7d0 net/core/skbuff.c:712
alloc_skb include/linux/skbuff.h:1383 [inline]
mld_newpack+0x14c/0xc90 net/ipv6/mcast.c:1775
add_grhead+0x5a/0x2a0 net/ipv6/mcast.c:1886
add_grec+0x1452/0x1740 net/ipv6/mcast.c:2025
mld_send_initial_cr+0x288/0x550 net/ipv6/mcast.c:2268
mld_dad_work+0x45/0x5b0 net/ipv6/mcast.c:2294
process_one_work+0x949/0x15a0 kernel/workqueue.c:3279
process_scheduled_works kernel/workqueue.c:3362 [inline]
worker_thread+0xb46/0x1140 kernel/workqueue.c:3443
kthread+0x388/0x470 kernel/kthread.c:467
ret_from_fork+0x51b/0xa40 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__queue_work+0xa2/0xf90 kernel/workqueue.c:2269
Code: 11 31 ff 89 ee e8 4e f4 37 00 85 ed 0f 85 ef 0c 00 00 e8 01 f0 37 00 4d 8d b7 c0 01 00 00 4c 89 f0 48 c1 e8 03 48 89 44 24 28 <42> 0f b6 04 20 84 c0 0f 85 22 0d 00 00 4c 89 34 24 41 8b 2e 89 ee
RSP: 0018:ffffc90000006fb8 EFLAGS: 00010002
RAX: 0000000000000038 RBX: 0000000000000008 RCX: 0000000000040000
RDX: ffffc90002171000 RSI: 00000000000007bc RDI: 00000000000007bd
RBP: 0000000000000000 R08: ffff88813fe32017 R09: 1ffff11027fc6402
R10: dffffc0000000000 R11: ffffed1027fc6403 R12: dffffc0000000000
R13: ffff88813fe32010 R14: 00000000000001c0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888125063000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33c10ff8 CR3: 000000007c266000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 31 ff xor %edi,%edi
2: 89 ee mov %ebp,%esi
4: e8 4e f4 37 00 call 0x37f457
9: 85 ed test %ebp,%ebp
b: 0f 85 ef 0c 00 00 jne 0xd00
11: e8 01 f0 37 00 call 0x37f017
16: 4d 8d b7 c0 01 00 00 lea 0x1c0(%r15),%r14
1d: 4c 89 f0 mov %r14,%rax
20: 48 c1 e8 03 shr $0x3,%rax
24: 48 89 44 24 28 mov %rax,0x28(%rsp)
* 29: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 0f 85 22 0d 00 00 jne 0xd58
36: 4c 89 34 24 mov %r14,(%rsp)
3a: 41 8b 2e mov (%r14),%ebp
3d: 89 ee mov %ebp,%esi