==================================================================
BUG: KASAN: use-after-free in cpu_map_generic_redirect+0x1a8/0x6d0 kernel/bpf/cpumap.c:786
Read of size 8 at addr ffff88810da0cb18 by task syz-executor/287
CPU: 1 PID: 287 Comm: syz-executor Tainted: G W 5.15.176-syzkaller-00972-g829d9f138569 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x151/0x1c0 lib/dump_stack.c:106
print_address_description+0x87/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:427 [inline]
kasan_report+0x179/0x1c0 mm/kasan/report.c:444
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
cpu_map_generic_redirect+0x1a8/0x6d0 kernel/bpf/cpumap.c:786
xdp_do_generic_redirect_map net/core/filter.c:4189 [inline]
xdp_do_generic_redirect+0x3df/0xb40 net/core/filter.c:4236
do_xdp_generic+0x50b/0x7c0 net/core/dev.c:4919
__netif_receive_skb_core+0x1706/0x3640 net/core/dev.c:5324
__netif_receive_skb_one_core net/core/dev.c:5499 [inline]
__netif_receive_skb+0x11c/0x530 net/core/dev.c:5615
process_backlog+0x31c/0x650 net/core/dev.c:6492
__napi_poll+0xc4/0x5a0 net/core/dev.c:7051
napi_poll net/core/dev.c:7118 [inline]
net_rx_action+0x47d/0xc50 net/core/dev.c:7208
handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
__do_softirq kernel/softirq.c:603 [inline]
invoke_softirq kernel/softirq.c:425 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:pipe_write+0x914/0x1930 fs/pipe.c:536
Code: 88 c6 42 8d 04 f5 08 00 00 00 89 03 43 80 3c 27 00 48 8b 9c 24 c8 00 00 00 74 08 48 89 df e8 43 85 f5 ff 48 c7 03 00 00 00 00 00 10 00 00 4c 89 ef 31 f6 48 8b 8c 24 c0 00 00 00 e8 d5 42 a7
RSP: 0018:ffffc900007bfa60 EFLAGS: 00000246
RAX: 0000000000000010 RBX: ffff888116034090 RCX: 0000000000000046
RDX: ffff88810963bb40 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900007bfc30 R08: ffffffff81bd4c7e R09: 0000000000000003
R10: fffff520000f7f3c R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffea0005338000 R14: 0000000000000001 R15: 1ffff11022c06812
call_write_iter include/linux/fs.h:2206 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xd5d/0x1110 fs/read_write.c:594
ksys_write+0x199/0x2c0 fs/read_write.c:647
__do_sys_write fs/read_write.c:659 [inline]
__se_sys_write fs/read_write.c:656 [inline]
__x64_sys_write+0x7b/0x90 fs/read_write.c:656
x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f92273787a0
Code: 40 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d a1 7d 1c 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffe0316fd18 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555578d224b0 RCX: 00007f92273787a0
RDX: 0000000000000030 RSI: 00007ffe0316fd50 RDI: 000000000000000c
RBP: 0000555578d2abe0 R08: 00007ffe031cc080 R09: 00007ffe031cc0b0
R10: 00000000000305a2 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000008 R14: 00007ffe0316fd30 R15: 0000000000000000
Allocated by task 21055:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:433 [inline]
____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512
__kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521
kasan_kmalloc include/linux/kasan.h:227 [inline]
__kmalloc+0x13f/0x2c0 mm/slub.c:4431
__kmalloc_node include/linux/slab.h:469 [inline]
kmalloc_node include/linux/slab.h:626 [inline]
bpf_map_kmalloc_node+0xdb/0x160 kernel/bpf/syscall.c:432
__cpu_map_entry_alloc kernel/bpf/cpumap.c:442 [inline]
cpu_map_update_elem+0x26c/0xea0 kernel/bpf/cpumap.c:600
bpf_map_update_value+0x1a3/0x3c0 kernel/bpf/syscall.c:186
map_update_elem+0x644/0x770 kernel/bpf/syscall.c:1165
__sys_bpf+0x405/0x760 kernel/bpf/syscall.c:4626
__do_sys_bpf kernel/bpf/syscall.c:4742 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4740 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:4740
x64_sys_call+0x87f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Freed by task 21056:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:45
kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:373
kasan_slab_free include/linux/kasan.h:193 [inline]
slab_free_hook mm/slub.c:1723 [inline]
slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749
slab_free mm/slub.c:3521 [inline]
kfree+0xcc/0x270 mm/slub.c:4583
put_cpu_map_entry+0x6dd/0x750 kernel/bpf/cpumap.c:160
cpu_map_kthread_run+0x22d0/0x2390 kernel/bpf/cpumap.c:407
kthread+0x421/0x510 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
__kasan_record_aux_stack+0xd3/0xf0 mm/kasan/generic.c:348
kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
insert_work+0x56/0x320 kernel/workqueue.c:1373
__queue_work+0x92a/0xcd0 kernel/workqueue.c:1539
queue_work_on+0x105/0x170 kernel/workqueue.c:1566
queue_work include/linux/workqueue.h:510 [inline]
schedule_work include/linux/workqueue.h:571 [inline]
__cpu_map_entry_replace kernel/bpf/cpumap.c:555 [inline]
cpu_map_free+0x1e7/0x2c0 kernel/bpf/cpumap.c:638
bpf_map_free_deferred+0x10d/0x1e0 kernel/bpf/syscall.c:481
process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325
worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472
kthread+0x421/0x510 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Second to last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
__kasan_record_aux_stack+0xd3/0xf0 mm/kasan/generic.c:348
kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
__call_rcu_common kernel/rcu/tree.c:3007 [inline]
call_rcu+0x123/0x10b0 kernel/rcu/tree.c:3125
__cpu_map_entry_replace kernel/bpf/cpumap.c:553 [inline]
cpu_map_free+0x109/0x2c0 kernel/bpf/cpumap.c:638
bpf_map_free_deferred+0x10d/0x1e0 kernel/bpf/syscall.c:481
process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325
worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472
kthread+0x421/0x510 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
The buggy address belongs to the object at ffff88810da0cb00
which belongs to the cache kmalloc-192 of size 192
The buggy address is located 24 bytes inside of
192-byte region [ffff88810da0cb00, ffff88810da0cbc0)
The buggy address belongs to the page:
page:ffffea0004368300 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10da0c
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 ffffea00063d5e80 0000000900000007 ffff888100042c00
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 101, ts 1068883372722, free_ts 1068831744057
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2605
prep_new_page+0x1b/0x110 mm/page_alloc.c:2611
get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4485
__alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5780
allocate_slab mm/slub.c:1932 [inline]
new_slab+0x9a/0x4e0 mm/slub.c:1995
___slab_alloc+0x39e/0x830 mm/slub.c:3028
__slab_alloc+0x4a/0x90 mm/slub.c:3115
slab_alloc_node mm/slub.c:3206 [inline]
slab_alloc mm/slub.c:3250 [inline]
kmem_cache_alloc_trace+0x147/0x270 mm/slub.c:3267
kmalloc include/linux/slab.h:603 [inline]
kzalloc include/linux/slab.h:733 [inline]
kernfs_fop_open+0x324/0xab0 fs/kernfs/file.c:628
do_dentry_open+0x81c/0xfd0 fs/open.c:828
vfs_open+0x73/0x80 fs/open.c:958
do_open fs/namei.c:3608 [inline]
path_openat+0x26f0/0x2f40 fs/namei.c:3742
do_filp_open+0x21c/0x460 fs/namei.c:3769
do_sys_openat2+0x13f/0x820 fs/open.c:1234
do_sys_open fs/open.c:1250 [inline]
__do_sys_openat fs/open.c:1266 [inline]
__se_sys_openat fs/open.c:1261 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1261
x64_sys_call+0x6bf/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:258
page last free stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
free_pages_prepare mm/page_alloc.c:1472 [inline]
free_pcp_prepare mm/page_alloc.c:1544 [inline]
free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534
free_unref_page+0xe8/0x750 mm/page_alloc.c:3616
free_the_page mm/page_alloc.c:805 [inline]
__free_pages+0x61/0xf0 mm/page_alloc.c:5856
free_pages+0x7c/0x90 mm/page_alloc.c:5867
tlb_batch_list_free mm/mmu_gather.c:61 [inline]
tlb_finish_mmu+0x253/0x320 mm/mmu_gather.c:341
exit_mmap+0x484/0x990 mm/mmap.c:3236
__mmput+0x95/0x310 kernel/fork.c:1180
mmput+0x5b/0x170 kernel/fork.c:1203
exit_mm kernel/exit.c:554 [inline]
do_exit+0xb9c/0x2ca0 kernel/exit.c:867
do_group_exit+0x141/0x310 kernel/exit.c:1002
get_signal+0x7a3/0x1630 kernel/signal.c:2907
arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:154 [inline]
exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
Memory state around the buggy address:
ffff88810da0ca00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88810da0ca80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
>ffff88810da0cb00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88810da0cb80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff88810da0cc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
================================================================================
UBSAN: array-index-out-of-bounds in kernel/locking/qspinlock.c:130:9
index 16382 is out of range for type 'unsigned long[8]'
CPU: 1 PID: 287 Comm: syz-executor Tainted: G B W 5.15.176-syzkaller-00972-g829d9f138569 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x151/0x1c0 lib/dump_stack.c:106
dump_stack+0x15/0x20 lib/dump_stack.c:113
ubsan_epilogue lib/ubsan.c:151 [inline]
__ubsan_handle_out_of_bounds+0x118/0x140 lib/ubsan.c:282
decode_tail kernel/locking/qspinlock.c:130 [inline]
__pv_queued_spin_lock_slowpath+0xb9d/0xc40 kernel/locking/qspinlock.c:468
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
do_raw_spin_lock include/linux/spinlock.h:187 [inline]
__raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_lock+0x139/0x1b0 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:363 [inline]
ptr_ring_produce include/linux/ptr_ring.h:128 [inline]
cpu_map_generic_redirect+0x1d5/0x6d0 kernel/bpf/cpumap.c:786
xdp_do_generic_redirect_map net/core/filter.c:4189 [inline]
xdp_do_generic_redirect+0x3df/0xb40 net/core/filter.c:4236
do_xdp_generic+0x50b/0x7c0 net/core/dev.c:4919
__netif_receive_skb_core+0x1706/0x3640 net/core/dev.c:5324
__netif_receive_skb_one_core net/core/dev.c:5499 [inline]
__netif_receive_skb+0x11c/0x530 net/core/dev.c:5615
process_backlog+0x31c/0x650 net/core/dev.c:6492
__napi_poll+0xc4/0x5a0 net/core/dev.c:7051
napi_poll net/core/dev.c:7118 [inline]
net_rx_action+0x47d/0xc50 net/core/dev.c:7208
handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
__do_softirq kernel/softirq.c:603 [inline]
invoke_softirq kernel/softirq.c:425 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:pipe_write+0x914/0x1930 fs/pipe.c:536
Code: 88 c6 42 8d 04 f5 08 00 00 00 89 03 43 80 3c 27 00 48 8b 9c 24 c8 00 00 00 74 08 48 89 df e8 43 85 f5 ff 48 c7 03 00 00 00 00 00 10 00 00 4c 89 ef 31 f6 48 8b 8c 24 c0 00 00 00 e8 d5 42 a7
RSP: 0018:ffffc900007bfa60 EFLAGS: 00000246
RAX: 0000000000000010 RBX: ffff888116034090 RCX: 0000000000000046
RDX: ffff88810963bb40 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900007bfc30 R08: ffffffff81bd4c7e R09: 0000000000000003
R10: fffff520000f7f3c R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffea0005338000 R14: 0000000000000001 R15: 1ffff11022c06812
call_write_iter include/linux/fs.h:2206 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xd5d/0x1110 fs/read_write.c:594
ksys_write+0x199/0x2c0 fs/read_write.c:647
__do_sys_write fs/read_write.c:659 [inline]
__se_sys_write fs/read_write.c:656 [inline]
__x64_sys_write+0x7b/0x90 fs/read_write.c:656
x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f92273787a0
Code: 40 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d a1 7d 1c 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffe0316fd18 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555578d224b0 RCX: 00007f92273787a0
RDX: 0000000000000030 RSI: 00007ffe0316fd50 RDI: 000000000000000c
RBP: 0000555578d2abe0 R08: 00007ffe031cc080 R09: 00007ffe031cc0b0
R10: 00000000000305a2 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000008 R14: 00007ffe0316fd30 R15: 0000000000000000
================================================================================
general protection fault, probably for non-canonical address 0xe010f4fb9f81ff65: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x0087c7dcfc0ffb28-0x0087c7dcfc0ffb2f]
CPU: 1 PID: 287 Comm: syz-executor Tainted: G B W 5.15.176-syzkaller-00972-g829d9f138569 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__pv_queued_spin_lock_slowpath+0x2f3/0xc40 kernel/locking/qspinlock.c:471
Code: 74 1e 48 89 4c 24 10 48 8b 7c 24 10 e8 86 98 5d 00 48 8b 4c 24 10 48 ba 00 00 00 00 00 fc ff df 4c 03 21 4c 89 e0 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 e7 e8 ff 98 5d 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc900001d05a0 EFLAGS: 00010206
RAX: 0010f8fb9f81ff65 RBX: ffff8881f7138ad4 RCX: ffffffff86285820
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: 00000000ffffffff
RBP: ffffc900001d0690 R08: ffffffff8141a99b R09: 0000000000000003
R10: fffffbfff0e9a84c R11: dffffc0000000001 R12: 0087c7dcfc0ffb29
R13: 1ffff11021b41940 R14: 1ffff1103ee27159 R15: ffff88810da0ca04
FS: 0000555578d0e500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fb1fffc CR3: 000000011ce14000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
do_raw_spin_lock include/linux/spinlock.h:187 [inline]
__raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_lock+0x139/0x1b0 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:363 [inline]
ptr_ring_produce include/linux/ptr_ring.h:128 [inline]
cpu_map_generic_redirect+0x1d5/0x6d0 kernel/bpf/cpumap.c:786
xdp_do_generic_redirect_map net/core/filter.c:4189 [inline]
xdp_do_generic_redirect+0x3df/0xb40 net/core/filter.c:4236
do_xdp_generic+0x50b/0x7c0 net/core/dev.c:4919
__netif_receive_skb_core+0x1706/0x3640 net/core/dev.c:5324
__netif_receive_skb_one_core net/core/dev.c:5499 [inline]
__netif_receive_skb+0x11c/0x530 net/core/dev.c:5615
process_backlog+0x31c/0x650 net/core/dev.c:6492
__napi_poll+0xc4/0x5a0 net/core/dev.c:7051
napi_poll net/core/dev.c:7118 [inline]
net_rx_action+0x47d/0xc50 net/core/dev.c:7208
handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
__do_softirq kernel/softirq.c:603 [inline]
invoke_softirq kernel/softirq.c:425 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:pipe_write+0x914/0x1930 fs/pipe.c:536
Code: 88 c6 42 8d 04 f5 08 00 00 00 89 03 43 80 3c 27 00 48 8b 9c 24 c8 00 00 00 74 08 48 89 df e8 43 85 f5 ff 48 c7 03 00 00 00 00 00 10 00 00 4c 89 ef 31 f6 48 8b 8c 24 c0 00 00 00 e8 d5 42 a7
RSP: 0018:ffffc900007bfa60 EFLAGS: 00000246
RAX: 0000000000000010 RBX: ffff888116034090 RCX: 0000000000000046
RDX: ffff88810963bb40 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900007bfc30 R08: ffffffff81bd4c7e R09: 0000000000000003
R10: fffff520000f7f3c R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffea0005338000 R14: 0000000000000001 R15: 1ffff11022c06812
call_write_iter include/linux/fs.h:2206 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xd5d/0x1110 fs/read_write.c:594
ksys_write+0x199/0x2c0 fs/read_write.c:647
__do_sys_write fs/read_write.c:659 [inline]
__se_sys_write fs/read_write.c:656 [inline]
__x64_sys_write+0x7b/0x90 fs/read_write.c:656
x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f92273787a0
Code: 40 00 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d a1 7d 1c 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
RSP: 002b:00007ffe0316fd18 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555578d224b0 RCX: 00007f92273787a0
RDX: 0000000000000030 RSI: 00007ffe0316fd50 RDI: 000000000000000c
RBP: 0000555578d2abe0 R08: 00007ffe031cc080 R09: 00007ffe031cc0b0
R10: 00000000000305a2 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000008 R14: 00007ffe0316fd30 R15: 0000000000000000
Modules linked in:
---[ end trace e0c4c4cb24b8e90d ]---
RIP: 0010:__pv_queued_spin_lock_slowpath+0x2f3/0xc40 kernel/locking/qspinlock.c:471
Code: 74 1e 48 89 4c 24 10 48 8b 7c 24 10 e8 86 98 5d 00 48 8b 4c 24 10 48 ba 00 00 00 00 00 fc ff df 4c 03 21 4c 89 e0 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 e7 e8 ff 98 5d 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc900001d05a0 EFLAGS: 00010206
RAX: 0010f8fb9f81ff65 RBX: ffff8881f7138ad4 RCX: ffffffff86285820
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: 00000000ffffffff
RBP: ffffc900001d0690 R08: ffffffff8141a99b R09: 0000000000000003
R10: fffffbfff0e9a84c R11: dffffc0000000001 R12: 0087c7dcfc0ffb29
R13: 1ffff11021b41940 R14: 1ffff1103ee27159 R15: ffff88810da0ca04
FS: 0000555578d0e500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fb1fffc CR3: 000000011ce14000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 88 c6 mov %al,%dh
2: 42 8d 04 f5 08 00 00 lea 0x8(,%r14,8),%eax
9: 00
a: 89 03 mov %eax,(%rbx)
c: 43 80 3c 27 00 cmpb $0x0,(%r15,%r12,1)
11: 48 8b 9c 24 c8 00 00 mov 0xc8(%rsp),%rbx
18: 00
19: 74 08 je 0x23
1b: 48 89 df mov %rbx,%rdi
1e: e8 43 85 f5 ff call 0xfff58566
23: 48 c7 03 00 00 00 00 movq $0x0,(%rbx)
* 2a: ba 00 10 00 00 mov $0x1000,%edx <-- trapping instruction
2f: 4c 89 ef mov %r13,%rdi
32: 31 f6 xor %esi,%esi
34: 48 8b 8c 24 c0 00 00 mov 0xc0(%rsp),%rcx
3b: 00
3c: e8 .byte 0xe8
3d: d5 (bad)
3e: 42 a7 rex.X cmpsl %es:(%rdi),%ds:(%rsi)