INFO: task syz-executor.0:9978 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24920 pid:9978 ppid:5113 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
io_schedule+0x8c/0x100 kernel/sched/core.c:8887
folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301
btrfs_page_mkwrite+0x42d/0xc90 fs/btrfs/inode.c:8153
do_page_mkwrite+0x1a1/0x600 mm/memory.c:2925
wp_page_shared mm/memory.c:3274 [inline]
do_wp_page+0x501/0x3620 mm/memory.c:3356
handle_pte_fault mm/memory.c:4941 [inline]
__handle_mm_fault mm/memory.c:5065 [inline]
handle_mm_fault+0x23a0/0x51c0 mm/memory.c:5211
do_user_addr_fault arch/x86/mm/fault.c:1407 [inline]
handle_page_fault arch/x86/mm/fault.c:1498 [inline]
exc_page_fault+0x5b1/0x7c0 arch/x86/mm/fault.c:1554
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f1ad3a2bde9
RSP: 002b:00007ffd6edaf520 EFLAGS: 00010246
RAX: 0000000020000140 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000555555f6b2e8
RBP: 00007ffd6edaf618 R08: 0000000000000000 R09: 0000000000000000
R10: 00007f1ad3606138 R11: 0000000000011814 R12: 000000000005a50a
R13: 00007ffd6edaf640 R14: 00007ffd6edaf660 R15: 0000000000000032
INFO: task syz-executor.0:9979 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:22008 pid:9979 ppid:5113 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
inode_lock include/linux/fs.h:758 [inline]
btrfs_inode_lock+0x4d/0xd0 fs/btrfs/inode.c:177
btrfs_sync_file+0x43e/0x10b0 fs/btrfs/file.c:1817
generic_write_sync include/linux/fs.h:2452 [inline]
btrfs_do_write_iter+0xccc/0x1270 fs/btrfs/file.c:1684
do_iter_write+0x6ea/0xc50 fs/read_write.c:861
iter_file_splice_write+0x843/0xfe0 fs/splice.c:778
do_splice_from fs/splice.c:856 [inline]
direct_splice_actor+0xe7/0x1c0 fs/splice.c:1022
splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:977
do_splice_direct+0x283/0x3d0 fs/splice.c:1065
do_sendfile+0x620/0xff0 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1309
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1ad3a8c169
RSP: 002b:00007f1ad4775168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f1ad3babf80 RCX: 00007f1ad3a8c169
RDX: 0000000000000000 RSI: 000000000000000b RDI: 0000000000000007
RBP: 00007f1ad3ae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd6edaf4df R14: 00007f1ad4775300 R15: 0000000000022000
INFO: task syz-executor.0:10053 blocked for more than 144 seconds.
Not tainted 6.3.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24224 pid:10053 ppid:5113 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
wait_on_state fs/btrfs/extent-io-tree.c:707 [inline]
wait_extent_bit+0x50c/0x670 fs/btrfs/extent-io-tree.c:751
lock_extent+0x1ce/0x280 fs/btrfs/extent-io-tree.c:1742
btrfs_page_mkwrite+0x554/0xc90 fs/btrfs/inode.c:8163
do_page_mkwrite+0x1a1/0x600 mm/memory.c:2925
wp_page_shared mm/memory.c:3274 [inline]
do_wp_page+0x501/0x3620 mm/memory.c:3356
handle_pte_fault mm/memory.c:4941 [inline]
__handle_mm_fault mm/memory.c:5065 [inline]
handle_mm_fault+0x23a0/0x51c0 mm/memory.c:5211
do_user_addr_fault arch/x86/mm/fault.c:1407 [inline]
handle_page_fault arch/x86/mm/fault.c:1498 [inline]
exc_page_fault+0x5b1/0x7c0 arch/x86/mm/fault.c:1554
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:copy_user_short_string+0xd/0x40 arch/x86/lib/copy_user_64.S:233
Code: 74 0a 89 d1 f3 a4 89 c8 0f 01 ca c3 89 d0 0f 01 ca c3 01 ca eb e7 0f 1f 80 00 00 00 00 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 <4c> 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 8a
RSP: 0018:ffffc9001699f550 EFLAGS: 00050202
RAX: ffffffff84304701 RBX: 00007fffffffefc8 RCX: 0000000000000007
RDX: 0000000000000000 RSI: ffffc9001699f600 RDI: 0000000020000220
RBP: ffffc9001699f6b0 R08: 0000000000000000 R09: fffff52002d33ec7
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000038
R13: ffffc9001699f600 R14: 0000000020000220 R15: ffffc9001699f600
copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:58 [inline]
_copy_to_user+0xed/0x130 lib/usercopy.c:41
copy_to_user include/linux/uaccess.h:169 [inline]
fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:144
emit_last_fiemap_cache fs/btrfs/extent_io.c:3036 [inline]
extent_fiemap+0x1bf9/0x2150 fs/btrfs/extent_io.c:3563
btrfs_fiemap+0x178/0x1e0 fs/btrfs/inode.c:7835
ioctl_fiemap fs/ioctl.c:219 [inline]
do_vfs_ioctl+0x19ba/0x2b10 fs/ioctl.c:810
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl+0x81/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1ad3a8c169
RSP: 002b:00007f1ad4754168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1ad3bac050 RCX: 00007f1ad3a8c169
RDX: 0000000020000200 RSI: 00000000c020660b RDI: 0000000000000007
RBP: 00007f1ad3ae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd6edaf4df R14: 00007f1ad4754300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf25570 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf25d70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8cf253a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:3/42:
5 locks held by kworker/u4:5/1023:
2 locks held by getty/4744:
#0: ffff888028aa1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.1/5091:
#0: ffffffff8cf2a878 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff8cf2a878 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:989
2 locks held by kworker/0:17/6017:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc90014547d20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
3 locks held by syz-executor.0/9978:
#0: ffff88807af24098 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff88807af24098 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1348 [inline]
#0: ffff88807af24098 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1498 [inline]
#0: ffff88807af24098 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x18e/0x7c0 arch/x86/mm/fault.c:1554
#1: ffff8880296b0558 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x1a1/0x600 mm/memory.c:2925
#2: ffff888036a38420 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x425/0xc90 fs/btrfs/inode.c:8152
2 locks held by syz-executor.0/9979:
#0: ffff8880296b0460 (sb_writers#16){.+.+}-{0:0}, at: do_sendfile+0x5fb/0xff0 fs/read_write.c:1254
#1: ffff888036a38598 (&sb->s_type->i_mutex_key#25){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff888036a38598 (&sb->s_type->i_mutex_key#25){++++}-{3:3}, at: btrfs_inode_lock+0x4d/0xd0 fs/btrfs/inode.c:177
4 locks held by syz-executor.0/10053:
#0: ffff888036a38598 (&sb->s_type->i_mutex_key#25){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#0: ffff888036a38598 (&sb->s_type->i_mutex_key#25){++++}-{3:3}, at: btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:169
#1: ffff88807af24098 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#1: ffff88807af24098 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1348 [inline]
#1: ffff88807af24098 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1498 [inline]
#1: ffff88807af24098 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x18e/0x7c0 arch/x86/mm/fault.c:1554
#2: ffff8880296b0558 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x1a1/0x600 mm/memory.c:2925
#3: ffff888036a38420 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x425/0xc90 fs/btrfs/inode.c:8152
1 lock held by syz-executor.0/10217:
8 locks held by syz-executor.2/12108:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4428 Comm: udevd Not tainted 6.3.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:rol32 include/linux/bitops.h:126 [inline]
RIP: 0010:jhash2 include/linux/jhash.h:129 [inline]
RIP: 0010:hash_stack lib/stackdepot.c:316 [inline]
RIP: 0010:__stack_depot_save+0xa0/0x650 lib/stackdepot.c:376
Code: 01 f7 89 d9 c1 c1 08 41 29 de 44 31 f1 01 fb 29 cf 89 c8 c1 c0 10 31 f8 01 d9 89 c5 c1 c5 13 29 c3 31 dd 01 c8 29 e9 41 89 ee <41> c1 c6 04 41 31 ce 01 c5 83 c6 fd 48 83 c2 0c 83 fe 03 77 a0 83
RSP: 0018:ffffc9000316f658 EFLAGS: 00000202
RAX: 000000002ecf21de RBX: 000000007ecb730e RCX: 000000004925afc2
RDX: ffffc9000316f6bc RSI: 0000000000000013 RDI: 000000006d49e41f
RBP: 00000000037c6266 R08: 000000000000000b R09: fffffbfff1ca6956
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000800
R13: 0000000000000001 R14: 00000000037c6266 R15: ffffc9000316f6b0
FS: 00007f3e2881b840(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc7683efe0 CR3: 000000002b846000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x61/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:521
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:162 [inline]
slab_free_hook mm/slub.c:1781 [inline]
slab_free_freelist_hook mm/slub.c:1807 [inline]
slab_free mm/slub.c:3787 [inline]
__kmem_cache_free+0x264/0x3c0 mm/slub.c:3800
tomoyo_realpath_from_path+0x5a3/0x5e0 security/tomoyo/realpath.c:286
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x28d/0x700 security/tomoyo/file.c:822
security_inode_getattr+0xd3/0x120 security/security.c:1375
vfs_getattr fs/stat.c:167 [inline]
vfs_statx+0x18f/0x480 fs/stat.c:242
vfs_fstatat fs/stat.c:276 [inline]
__do_sys_newfstatat fs/stat.c:446 [inline]
__se_sys_newfstatat fs/stat.c:440 [inline]
__x64_sys_newfstatat+0x14f/0x1d0 fs/stat.c:440
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3e289251da
Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 0b 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 69 fc 0c 00 f7
RSP: 002b:00007ffc76848378 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007ffc76848f38 RCX: 00007f3e289251da
RDX: 00007ffc76848388 RSI: 00007ffc76848818 RDI: 00000000ffffff9c
RBP: 00007ffc76848418 R08: 0000000000000000 R09: 000055c73f1c95d0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc76848818
R13: 00007ffc76848388 R14: 000055c73f19d910 R15: 0000000000000000