syzbot |
sign-in | mailing list | source | docs |
| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| linux-5.15 | INFO: task hung in _vm_unmap_aliases | 1 | 1 | 348d | 348d | 0/3 | auto-obsoleted due to no activity on 2025/02/23 10:14 | |||
| upstream | INFO: task hung in _vm_unmap_aliases (3) modules | 1 | C | 596 | 1d08h | 659d | 0/29 | upstream: reported C repro on 2024/01/09 18:18 | ||
| upstream | INFO: task hung in _vm_unmap_aliases (2) modules | 1 | 1 | 1047d | 1047d | 0/29 | auto-obsoleted due to no activity on 2023/04/08 08:01 |
INFO: task syz-executor.1:24357 blocked for more than 143 seconds.
Not tainted 5.9.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29232 pid:24357 ppid: 6893 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:3778 [inline]
__schedule+0x8e5/0x21e0 kernel/sched/core.c:4527
schedule+0xd0/0x2a0 kernel/sched/core.c:4602
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:4661
__mutex_lock_common kernel/locking/mutex.c:1033 [inline]
__mutex_lock+0x3e2/0x10e0 kernel/locking/mutex.c:1103
_vm_unmap_aliases.part.0+0x35e/0x4d0 mm/vmalloc.c:1766
_vm_unmap_aliases mm/vmalloc.c:1742 [inline]
vm_unmap_aliases+0x42/0x50 mm/vmalloc.c:1791
change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1732
change_page_attr_clear arch/x86/mm/pat/set_memory.c:1789 [inline]
set_memory_ro+0x78/0xa0 arch/x86/mm/pat/set_memory.c:1935
bpf_jit_binary_lock_ro include/linux/filter.h:815 [inline]
bpf_int_jit_compile+0xd96/0x111e arch/x86/net/bpf_jit_comp.c:1929
bpf_prog_select_runtime+0x591/0xb00 kernel/bpf/core.c:1807
bpf_migrate_filter+0x2dc/0x380 net/core/filter.c:1290
bpf_prepare_filter net/core/filter.c:1338 [inline]
bpf_prog_create_from_user+0x51b/0x660 net/core/filter.c:1432
seccomp_prepare_filter kernel/seccomp.c:567 [inline]
seccomp_prepare_user_filter kernel/seccomp.c:604 [inline]
seccomp_set_mode_filter kernel/seccomp.c:1535 [inline]
do_seccomp+0x7ba/0x2420 kernel/seccomp.c:1649
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d4d9
Code: Bad RIP value.
RSP: 002b:00007f532fb68c78 EFLAGS: 00000246 ORIG_RAX: 000000000000013d
RAX: ffffffffffffffda RBX: 0000000000026680 RCX: 000000000045d4d9
RDX: 00000000200000c0 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 000000000169fb6f R14: 00007f532fb699c0 R15: 000000000118cf4c
INFO: task syz-executor.1:24369 blocked for more than 144 seconds.
Not tainted 5.9.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29232 pid:24369 ppid: 24357 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:3778 [inline]
__schedule+0x8e5/0x21e0 kernel/sched/core.c:4527
schedule+0xd0/0x2a0 kernel/sched/core.c:4602
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:4661
__mutex_lock_common kernel/locking/mutex.c:1033 [inline]
__mutex_lock+0x3e2/0x10e0 kernel/locking/mutex.c:1103
_vm_unmap_aliases.part.0+0x35e/0x4d0 mm/vmalloc.c:1766
_vm_unmap_aliases mm/vmalloc.c:1742 [inline]
vm_unmap_aliases+0x42/0x50 mm/vmalloc.c:1791
change_page_attr_set_clr+0x241/0x500 arch/x86/mm/pat/set_memory.c:1732
change_page_attr_clear arch/x86/mm/pat/set_memory.c:1789 [inline]
set_memory_ro+0x78/0xa0 arch/x86/mm/pat/set_memory.c:1935
bpf_jit_binary_lock_ro include/linux/filter.h:815 [inline]
bpf_int_jit_compile+0xd96/0x111e arch/x86/net/bpf_jit_comp.c:1929
bpf_prog_select_runtime+0x591/0xb00 kernel/bpf/core.c:1807
bpf_migrate_filter+0x2dc/0x380 net/core/filter.c:1290
bpf_prepare_filter net/core/filter.c:1338 [inline]
bpf_prog_create_from_user+0x51b/0x660 net/core/filter.c:1432
seccomp_prepare_filter kernel/seccomp.c:567 [inline]
seccomp_prepare_user_filter kernel/seccomp.c:604 [inline]
seccomp_set_mode_filter kernel/seccomp.c:1535 [inline]
do_seccomp+0x7ba/0x2420 kernel/seccomp.c:1649
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d4d9
Code: Bad RIP value.
RSP: 002b:00007f532fb47c78 EFLAGS: 00000246 ORIG_RAX: 000000000000013d
RAX: ffffffffffffffda RBX: 0000000000026680 RCX: 000000000045d4d9
RDX: 00000000200000c0 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 000000000118d020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cfec
R13: 000000000169fb6f R14: 00007f532fb489c0 R15: 000000000118cfec
Showing all locks held in the system:
1 lock held by khungtaskd/1171:
#0: ffffffff89bd6340 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:5825
1 lock held by ion_system_heap/3563:
1 lock held by in:imklog/6518:
#0: ffff888097921170 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930
2 locks held by agetty/6752:
#0: ffff888090c14098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:267
#1: ffffc90000f902e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x223/0x1a30 drivers/tty/n_tty.c:2156
1 lock held by syz-executor.2/14746:
1 lock held by syz-executor.2/15308:
2 locks held by syz-executor.2/15552:
2 locks held by syz-executor.2/15772:
1 lock held by syz-executor.2/15938:
1 lock held by syz-executor.2/16561:
1 lock held by syz-executor.2/16997:
2 locks held by kworker/u4:0/23339:
1 lock held by syz-executor.1/24357:
#0: ffffffff89c83e28 (vmap_purge_lock){+.+.}-{3:3}, at: _vm_unmap_aliases.part.0+0x35e/0x4d0 mm/vmalloc.c:1766
1 lock held by syz-executor.1/24369:
#0: ffffffff89c83e28 (vmap_purge_lock){+.+.}-{3:3}, at: _vm_unmap_aliases.part.0+0x35e/0x4d0 mm/vmalloc.c:1766
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1171 Comm: khungtaskd Not tainted 5.9.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x18f/0x20d lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x70/0xb1 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1b3/0x223 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
watchdog+0xd7d/0x1000 kernel/hung_task.c:295
kthread+0x3b5/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 16997 Comm: syz-executor.2 Not tainted 5.9.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_release kernel/locking/lockdep.c:4699 [inline]
RIP: 0010:lock_release+0x1eb/0x8e0 kernel/locking/lockdep.c:5023
Code: 03 0f b6 14 11 65 4c 8b 3c 25 c0 fe 01 00 38 d0 7c 08 84 d2 0f 85 49 06 00 00 44 8b 05 8a e9 57 09 45 85 c0 0f 84 1c 02 00 00 <4d> 8d 8f e0 08 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ca 48 c1
RSP: 0018:ffffc90015bcf880 EFLAGS: 00000002
RAX: 0000000000000007 RBX: 0000000000000001 RCX: 1ffffffff15649a7
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8ab21ac8
RBP: 1ffff92002b79f12 R08: 0000000000000001 R09: ffffffff8ab21acf
R10: fffffbfff1564359 R11: 0000000000000001 R12: ffffffff89bd6340
R13: ffffffff836bb9f8 R14: 0000000000000000 R15: ffff88821473c240
FS: 00007f1923160700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ffb383000 CR3: 000000021396f000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_release include/linux/rcupdate.h:246 [inline]
rcu_read_unlock include/linux/rcupdate.h:688 [inline]
aa_file_perm+0x5dd/0x1100 security/apparmor/file.c:623
common_file_perm security/apparmor/lsm.c:466 [inline]
apparmor_file_permission+0x163/0x4e0 security/apparmor/lsm.c:480
security_file_permission+0x56/0x560 security/security.c:1446
rw_verify_area+0x115/0x360 fs/read_write.c:400
do_splice_to+0x80/0x170 fs/splice.c:862
splice_direct_to_actor+0x307/0x980 fs/splice.c:950
do_splice_direct+0x1b3/0x280 fs/splice.c:1059
do_sendfile+0x55f/0xd40 fs/read_write.c:1540
__do_sys_sendfile64 fs/read_write.c:1595 [inline]
__se_sys_sendfile64 fs/read_write.c:1587 [inline]
__x64_sys_sendfile64+0x149/0x210 fs/read_write.c:1587
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d4d9
Code: Bad RIP value.
RSP: 002b:00007f192315fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000026bc0 RCX: 000000000045d4d9
RDX: 00000000200001c0 RSI: 0000000000000005 RDI: 0000000000000005
RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000
R10: 00008080fffffffe R11: 0000000000000246 R12: 000000000118cf4c
R13: 000000000169fb6f R14: 00007f19231609c0 R15: 000000000118cf4c
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020/08/19 05:50 | upstream | 18445bf405cb | e1c29030 | .config | console log | report | ci-upstream-kasan-gce |