INFO: task jbd2/sda1-8:5163 blocked for more than 143 seconds.
Tainted: G U 6.15.0-rc4-syzkaller-00040-g8bac8898fe39 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/sda1-8 state:D stack:26616 pid:5163 tgid:5163 ppid:2 task_flags:0x240040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6860
io_schedule+0xbf/0x130 kernel/sched/core.c:7742
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xd9/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
__wait_on_buffer+0x64/0x70 fs/buffer.c:123
wait_on_buffer include/linux/buffer_head.h:422 [inline]
jbd2_journal_commit_transaction+0x382e/0x6830 fs/jbd2/commit.c:808
kjournald2+0x1f4/0x760 fs/jbd2/journal.c:201
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
INFO: task syz-executor:5817 blocked for more than 143 seconds.
Tainted: G U 6.15.0-rc4-syzkaller-00040-g8bac8898fe39 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:23680 pid:5817 tgid:5817 ppid:5815 task_flags:0x440100 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6860
io_schedule+0xbf/0x130 kernel/sched/core.c:7742
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xd9/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x93d/0x12a0 fs/jbd2/transaction.c:1092
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1241
__ext4_journal_get_write_access+0x6a/0x340 fs/ext4/ext4_jbd2.c:241
ext4_reserve_inode_write+0x1be/0x320 fs/ext4/inode.c:5892
__ext4_mark_inode_dirty+0x197/0x870 fs/ext4/inode.c:6066
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6103
__mark_inode_dirty+0x1eb/0xe50 fs/fs-writeback.c:2527
generic_update_time+0xcf/0xf0 fs/inode.c:2064
inode_update_time fs/inode.c:2077 [inline]
__file_update_time fs/inode.c:2305 [inline]
file_update_time+0x17d/0x1c0 fs/inode.c:2335
ext4_page_mkwrite+0x35e/0x1750 fs/ext4/inode.c:6221
do_page_mkwrite+0x171/0x380 mm/memory.c:3287
wp_page_shared mm/memory.c:3688 [inline]
do_wp_page+0xb9e/0x58e0 mm/memory.c:3907
handle_pte_fault mm/memory.c:6013 [inline]
__handle_mm_fault+0x1ada/0x2a40 mm/memory.c:6140
handle_mm_fault+0x3fe/0xad0 mm/memory.c:6309
do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1337
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fcee10689c5
RSP: 002b:00007ffc954b4af0 EFLAGS: 00010206
RAX: 00007fcedabe2b1c RBX: 00007ffc954b4bf0 RCX: 0000000000000000
RDX: 00007fcedabe2b18 RSI: 0000000000000008 RDI: 00007ffc954b4bf0
RBP: 00000000000003e6 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffc954b4bd0 R11: 0000000000000000 R12: 0000000000000000
R13: 000000000001d4e4 R14: fffffffffffe2b1c R15: 000000000001d4e4
INFO: task syz.3.1731:13760 blocked for more than 143 seconds.
Tainted: G U 6.15.0-rc4-syzkaller-00040-g8bac8898fe39 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.1731 state:D stack:23992 pid:13760 tgid:13760 ppid:5836 task_flags:0x400640 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6860
io_schedule+0xbf/0x130 kernel/sched/core.c:7742
folio_wait_bit_common+0x3d6/0x9e0 mm/filemap.c:1317
__folio_lock mm/filemap.c:1664 [inline]
lock_folio_maybe_drop_mmap mm/filemap.c:3190 [inline]
filemap_fault+0xd62/0x2740 mm/filemap.c:3424
__do_fault+0x10a/0x490 mm/memory.c:5098
do_read_fault mm/memory.c:5518 [inline]
do_fault mm/memory.c:5652 [inline]
do_pte_missing+0x1031/0x3fb0 mm/memory.c:4160
handle_pte_fault mm/memory.c:5997 [inline]
__handle_mm_fault+0x103d/0x2a40 mm/memory.c:6140
handle_mm_fault+0x3fe/0xad0 mm/memory.c:6309
faultin_page mm/gup.c:1193 [inline]
__get_user_pages+0x771/0x36f0 mm/gup.c:1491
__get_user_pages_locked mm/gup.c:1757 [inline]
get_dump_page+0x257/0x3d0 mm/gup.c:2275
dump_user_range+0x1c3/0xb30 fs/coredump.c:953
elf_core_dump+0x288a/0x3a90 fs/binfmt_elf.c:2128
do_coredump+0x3183/0x4480 fs/coredump.c:759
get_signal+0x22e3/0x26d0 kernel/signal.c:3019
arch_do_signal_or_restart+0x8f/0x7a0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
irqentry_exit_to_user_mode+0x13f/0x280 kernel/entry/common.c:231
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x0
RSP: 002b:0000000000000011 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f825fdb6240 RCX: 00007f825fb8e969
RDX: 9999999999999999 RSI: 0000000000000009 RDI: 0000000000000002
RBP: 00007f825fc10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f825fdb6240 R15: 00007ffc7ca84688
INFO: task syz.1.1749:13858 blocked for more than 144 seconds.
Tainted: G U 6.15.0-rc4-syzkaller-00040-g8bac8898fe39 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.1749 state:D stack:25672 pid:13858 tgid:13858 ppid:5826 task_flags:0x440040 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6860
io_schedule+0xbf/0x130 kernel/sched/core.c:7742
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xd9/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x93d/0x12a0 fs/jbd2/transaction.c:1092
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1241
__ext4_journal_get_write_access+0x6a/0x340 fs/ext4/ext4_jbd2.c:241
ext4_reserve_inode_write+0x1be/0x320 fs/ext4/inode.c:5892
__ext4_mark_inode_dirty+0x197/0x870 fs/ext4/inode.c:6066
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6103
__mark_inode_dirty+0x1eb/0xe50 fs/fs-writeback.c:2527
generic_update_time+0xcf/0xf0 fs/inode.c:2064
inode_update_time fs/inode.c:2077 [inline]
__file_update_time fs/inode.c:2305 [inline]
file_update_time+0x17d/0x1c0 fs/inode.c:2335
ext4_page_mkwrite+0x35e/0x1750 fs/ext4/inode.c:6221
do_page_mkwrite+0x171/0x380 mm/memory.c:3287
do_shared_fault mm/memory.c:5594 [inline]
do_fault mm/memory.c:5656 [inline]
do_pte_missing+0x29c/0x3fb0 mm/memory.c:4160
handle_pte_fault mm/memory.c:5997 [inline]
__handle_mm_fault+0x103d/0x2a40 mm/memory.c:6140
handle_mm_fault+0x3fe/0xad0 mm/memory.c:6309
do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1337
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f16a526eada
RSP: 002b:00007ffd7e6043b0 EFLAGS: 00010202
RAX: 0000001b2ff11000 RBX: 00007f16a60e5720 RCX: 0000001b2ff10ff8
RDX: 0000001b2fb20220 RSI: 0000000000000008 RDI: 00007f16a60e5720
RBP: ffffffff81c9fbc6 R08: 00007f16a55b6118 R09: 00007f16a55a2000
R10: 00007f16a45fd008 R11: 0000000000000007 R12: 0000000000000007
R13: 00000000000001d8 R14: ffffffff81c9f074 R15: 00000000000001f1
INFO: task syz.1.1749:13864 blocked for more than 144 seconds.
Tainted: G U 6.15.0-rc4-syzkaller-00040-g8bac8898fe39 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.1749 state:D stack:28288 pid:13864 tgid:13858 ppid:5826 task_flags:0x440040 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6860
io_schedule+0xbf/0x130 kernel/sched/core.c:7742
folio_wait_bit_common+0x3d6/0x9e0 mm/filemap.c:1317
folio_wait_writeback+0x3c/0x90 mm/page-writeback.c:3149
mpage_prepare_extent_to_map+0x535/0x1460 fs/ext4/inode.c:2501
ext4_do_writepages+0x9af/0x3490 fs/ext4/inode.c:2692
ext4_writepages+0x37a/0x7d0 fs/ext4/inode.c:2829
do_writepages+0x1b2/0x820 mm/page-writeback.c:2656
filemap_fdatawrite_wbc mm/filemap.c:386 [inline]
filemap_fdatawrite_wbc+0x104/0x160 mm/filemap.c:376
__filemap_fdatawrite_range+0xb2/0xf0 mm/filemap.c:419
file_write_and_wait_range+0xca/0x140 mm/filemap.c:794
ext4_sync_file+0x310/0xf10 fs/ext4/fsync.c:154
vfs_fsync_range+0x136/0x220 fs/sync.c:187
__do_sys_msync+0x3cb/0x5c0 mm/msync.c:96
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f16a538e969
RSP: 002b:00007f16a622d038 EFLAGS: 00000246 ORIG_RAX: 000000000000001a
RAX: ffffffffffffffda RBX: 00007f16a55b6160 RCX: 00007f16a538e969
RDX: 0000000400000004 RSI: 0180000000000000 RDI: 000000001ffff000
RBP: 00007f16a5410ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f16a55b6160 R15: 00007ffd7e604378
INFO: task syz.4.1752:13875 blocked for more than 145 seconds.
Tainted: G U 6.15.0-rc4-syzkaller-00040-g8bac8898fe39 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.1752 state:D stack:28632 pid:13875 tgid:13875 ppid:9469 task_flags:0x440040 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x116f/0x5de0 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6860
io_schedule+0xbf/0x130 kernel/sched/core.c:7742
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xd9/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x93d/0x12a0 fs/jbd2/transaction.c:1092
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1241
__ext4_journal_get_write_access+0x6a/0x340 fs/ext4/ext4_jbd2.c:241
ext4_reserve_inode_write+0x1be/0x320 fs/ext4/inode.c:5892
__ext4_mark_inode_dirty+0x197/0x870 fs/ext4/inode.c:6066
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6103
__mark_inode_dirty+0x1eb/0xe50 fs/fs-writeback.c:2527
generic_update_time+0xcf/0xf0 fs/inode.c:2064
inode_update_time fs/inode.c:2077 [inline]
__file_update_time fs/inode.c:2305 [inline]
file_update_time+0x17d/0x1c0 fs/inode.c:2335
ext4_page_mkwrite+0x35e/0x1750 fs/ext4/inode.c:6221
do_page_mkwrite+0x171/0x380 mm/memory.c:3287
do_shared_fault mm/memory.c:5594 [inline]
do_fault mm/memory.c:5656 [inline]
do_pte_missing+0x29c/0x3fb0 mm/memory.c:4160
handle_pte_fault mm/memory.c:5997 [inline]
__handle_mm_fault+0x103d/0x2a40 mm/memory.c:6140
handle_mm_fault+0x3fe/0xad0 mm/memory.c:6309
do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1337
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f6cdfc6547b
RSP: 002b:00007ffc02876d90 EFLAGS: 00010246
RAX: 00000000003ffde8 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000001b32f20000 RSI: 0000000000400000 RDI: 00007f6cdfe98d50
RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000040000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000000927c0 R14: 000000000008e7c7 R15: 00007ffc02877040
Showing all locks held in the system:
1 lock held by khungtaskd/31:
#0: ffffffff8e3bf440 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#0: ffffffff8e3bf440 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#0: ffffffff8e3bf440 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0 kernel/locking/lockdep.c:6764
6 locks held by kworker/u8:9/3456:
#0: ffff88801c6f3148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc9000bd0fd18 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffff88814d8040e0 (&type->s_umount_key#31){++++}-{4:4}, at: super_trylock_shared+0x1e/0xf0 fs/super.c:562
#3: ffff88814d806b98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: do_writepages+0x1b2/0x820 mm/page-writeback.c:2656
#4: ffff8880341e0950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x5e4/0x1410 fs/jbd2/transaction.c:444
#5: ffff888078cb5bf0 (&ei->i_data_sem){++++}-{4:4}, at: ext4_map_blocks+0x355/0x1390 fs/ext4/inode.c:705
3 locks held by syz-executor/5817:
#0: ffff888033e19d08 (vm_lock){++++}-{0:0}, at: do_user_addr_fault+0x452/0x1370 arch/x86/mm/fault.c:1328
#1: ffff88814d804518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x171/0x380 mm/memory.c:3287
#2: ffff8880341e0950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x5e4/0x1410 fs/jbd2/transaction.c:444
3 locks held by kworker/u8:37/9551:
#0: ffff8880b8439f18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:605
#1: ffffc9000aecfd18 ((work_completion)(&rdev->wiphy_work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffffffff9adbd2a8 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_deactivate+0x135/0x3a0 lib/debugobjects.c:873
2 locks held by syz.3.1731/13760:
#0: ffff888025382420 (sb_writers#5){.+.+}-{0:0}, at: get_signal+0x22e3/0x26d0 kernel/signal.c:3019
#1: ffff8880314601e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock_killable include/linux/mmap_lock.h:193 [inline]
#1: ffff8880314601e0 (&mm->mmap_lock){++++}-{4:4}, at: dump_user_range+0x187/0xb30 fs/coredump.c:941
2 locks held by getty/13761:
#0: ffff88823bf848a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc9000c4032f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41b/0x14f0 drivers/tty/n_tty.c:2222
3 locks held by syz.1.1749/13858:
#0: ffff888032743e48 (vm_lock){++++}-{0:0}, at: do_user_addr_fault+0x452/0x1370 arch/x86/mm/fault.c:1328
#1: ffff88814d804518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x171/0x380 mm/memory.c:3287
#2: ffff8880341e0950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x5e4/0x1410 fs/jbd2/transaction.c:444
1 lock held by syz.1.1749/13864:
#0: ffff88814d806b98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: do_writepages+0x1b2/0x820 mm/page-writeback.c:2656
3 locks held by syz.4.1752/13875:
#0: ffff88802840e6c8 (vm_lock){++++}-{0:0}, at: do_user_addr_fault+0x452/0x1370 arch/x86/mm/fault.c:1328
#1: ffff88814d804518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x171/0x380 mm/memory.c:3287
#2: ffff8880341e0950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x5e4/0x1410 fs/jbd2/transaction.c:444
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Tainted: G U 6.15.0-rc4-syzkaller-00040-g8bac8898fe39 #0 PREEMPT(full)
Tainted: [U]=USER
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:274 [inline]
watchdog+0xf70/0x12c0 kernel/hung_task.c:437
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9551 Comm: kworker/u8:37 Tainted: G U 6.15.0-rc4-syzkaller-00040-g8bac8898fe39 #0 PREEMPT(full)
Tainted: [U]=USER
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:unwind_next_frame+0xe70/0x20a0 arch/x86/kernel/unwind_orc.c:672
Code: b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e c6 0c 00 00 41 39 5d 00 0f 84 91 07 00 00 01 00 00 00 e9 5f f5 ff ff ba 28 00 00 00 4c 89 f6 4c 89 ef 48
RSP: 0018:ffffc9000aecf648 EFLAGS: 00000283
RAX: ffffc9000aed0001 RBX: ffffc9000aecf7e8 RCX: ffffffff911dcc01
RDX: ffffc9000aecf7f0 RSI: 0000000000000001 RDI: ffffc9000aecf6c8
RBP: ffffc9000aec8000 R08: ffffffff911dcca4 R09: 0000000000000000
R10: 0000000000000004 R11: 000000000000a68e R12: ffffc9000aecf708
R13: ffffc9000aecf6b8 R14: ffffc9000aecf7e8 R15: ffffc9000aecf6ec
FS: 0000000000000000(0000) GS:ffff8881249ed000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e19a8e3e48 CR3: 000000000e180000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4341 [inline]
__kmalloc_node_track_caller_noprof+0x221/0x510 mm/slub.c:4360
kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:599
__alloc_skb+0x166/0x380 net/core/skbuff.c:668
alloc_skb include/linux/skbuff.h:1340 [inline]
nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:748 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline]
nsim_dev_trap_report_work+0x2b1/0xcf0 drivers/net/netdevsim/dev.c:851
process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
kthread+0x3c2/0x780 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245