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🐞 Open [970] 🐞 Fixed [3880] 🐞 Invalid [8364] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|
INFO: task can't die in blkdev_common_ioctl | 8 | 3d14h | 93d | 0/22 | closed as dup on 2022/04/02 11:26 |
INFO: task syz-executor218:3614 blocked for more than 143 seconds. Not tainted 5.18.0-syzkaller-12234-g50fd82b3a9a9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor218 state:D stack:25328 pid: 3614 ppid: 3611 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5116 [inline] __schedule+0x957/0xec0 kernel/sched/core.c:6431 schedule+0xeb/0x1b0 kernel/sched/core.c:6503 rwsem_down_write_slowpath+0xe21/0x1370 kernel/locking/rwsem.c:1172 __down_write_common kernel/locking/rwsem.c:1287 [inline] __down_write kernel/locking/rwsem.c:1296 [inline] down_write+0x163/0x170 kernel/locking/rwsem.c:1543 filemap_invalidate_lock include/linux/fs.h:786 [inline] blkdev_fallocate+0x21f/0x390 block/fops.c:637 vfs_fallocate+0x515/0x670 fs/open.c:323 ksys_fallocate fs/open.c:346 [inline] __do_sys_fallocate fs/open.c:354 [inline] __se_sys_fallocate fs/open.c:352 [inline] __x64_sys_fallocate+0xb9/0x100 fs/open.c:352 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7fbb4a5dfe29 RSP: 002b:00007ffe703ac988 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007fbb4a5dfe29 RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 7fffffffffffffff R11: 0000000000000246 R12: 00007fbb4a5a3600 R13: 0000000000000000 R14: 00007ffe703ac9b0 R15: 00007ffe703ac9a0 </TASK> INFO: task syz-executor218:3631 blocked for more than 143 seconds. Not tainted 5.18.0-syzkaller-12234-g50fd82b3a9a9 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor218 state:D stack:26872 pid: 3631 ppid: 3603 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5116 [inline] __schedule+0x957/0xec0 kernel/sched/core.c:6431 schedule+0xeb/0x1b0 kernel/sched/core.c:6503 rwsem_down_write_slowpath+0xe21/0x1370 kernel/locking/rwsem.c:1172 __down_write_common kernel/locking/rwsem.c:1287 [inline] __down_write kernel/locking/rwsem.c:1296 [inline] down_write+0x163/0x170 kernel/locking/rwsem.c:1543 filemap_invalidate_lock include/linux/fs.h:786 [inline] blkdev_fallocate+0x21f/0x390 block/fops.c:637 vfs_fallocate+0x515/0x670 fs/open.c:323 ksys_fallocate fs/open.c:346 [inline] __do_sys_fallocate fs/open.c:354 [inline] __se_sys_fallocate fs/open.c:352 [inline] __x64_sys_fallocate+0xb9/0x100 fs/open.c:352 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7fbb4a5dfe29 RSP: 002b:00007ffe703ac988 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007fbb4a5dfe29 RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 7fffffffffffffff R11: 0000000000000246 R12: 000000000000a3fd R13: 00007ffe703ac99c R14: 00007ffe703ac9b0 R15: 00007ffe703ac9a0 </TASK> Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffffffff8cb1eea0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by getty/3283: #0: ffff88807f0d8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc90002cd62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ad/0x1c90 drivers/tty/n_tty.c:2075 1 lock held by syz-executor218/3613: 1 lock held by syz-executor218/3614: #0: ffff888140c9b4b8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:786 [inline] #0: ffff888140c9b4b8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:637 1 lock held by syz-executor218/3631: #0: ffff888140c9b4b8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:786 [inline] #0: ffff888140c9b4b8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:637 1 lock held by syz-executor218/3632: #0: ffff888140c9b4b8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:786 [inline] #0: ffff888140c9b4b8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:637 1 lock held by syz-executor218/3639: #0: ffff888140c9b4b8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:786 [inline] #0: ffff888140c9b4b8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:637 1 lock held by syz-executor218/3640: #0: ffff888140c9b4b8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:786 [inline] #0: ffff888140c9b4b8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:637 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 5.18.0-syzkaller-12234-g50fd82b3a9a9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 nmi_cpu_backtrace+0x473/0x4a0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x168/0x280 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xd18/0xd60 kernel/hung_task.c:378 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 </TASK> Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2960 Comm: klogd Not tainted 5.18.0-syzkaller-12234-g50fd82b3a9a9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_heap_object+0xdf/0x870 mm/usercopy.c:190 Code: a8 00 f0 ff ff 48 85 db 48 0f 45 e8 4c 89 e7 48 89 ee e8 14 eb a0 ff 49 39 ec 0f 87 fa 02 00 00 e8 c6 e8 a0 ff e9 c2 01 00 00 <e8> cc 31 56 ff 84 c0 0f 84 b0 01 00 00 89 5c 24 0c 48 bd 00 00 00 RSP: 0018:ffffc90002d1fa28 EFLAGS: 00000246 RAX: ffffe8ffffffff00 RBX: 0000000000000000 RCX: ffff88807dfb8000 RDX: 0000000000000000 RSI: 000000000000003a RDI: ffff888020323c00 RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff81e6a130 R10: 0000000000000003 R11: ffff88807dfb8000 R12: ffff888074fcca00 R13: ffff888020323c00 R14: ffff888020323c00 R15: 000000000000003a FS: 00007fcec4738800(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb4a650130 CR3: 0000000025940000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __check_object_size+0xad/0x210 mm/usercopy.c:252 check_object_size include/linux/thread_info.h:199 [inline] check_copy_size include/linux/thread_info.h:235 [inline] copy_from_iter include/linux/uio.h:168 [inline] skb_copy_datagram_from_iter+0xdf/0x6d0 net/core/datagram.c:556 unix_dgram_sendmsg+0x97a/0x1fc0 net/unix/af_unix.c:1908 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] __sys_sendto+0x439/0x5c0 net/socket.c:2119 __do_sys_sendto net/socket.c:2131 [inline] __se_sys_sendto net/socket.c:2127 [inline] __x64_sys_sendto+0xda/0xf0 net/socket.c:2127 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7fcec48d40ac Code: 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 19 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 64 c3 0f 1f 00 55 48 83 ec 20 48 89 54 24 10 RSP: 002b:00007ffde8c6f138 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcec48d40ac RDX: 000000000000003a RSI: 00005569ba999c80 RDI: 0000000000000003 RBP: 00005569ba995910 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000014 R13: 0000000000000001 R14: 00007fcec4a4f77d R15: 00007ffde8c6f248 </TASK> ---------------- Code disassembly (best guess): 0: a8 00 test $0x0,%al 2: f0 ff lock (bad) 4: ff 48 85 decl -0x7b(%rax) 7: db 48 0f fisttpl 0xf(%rax) a: 45 e8 4c 89 e7 48 rex.RB callq 0x48e7895c 10: 89 ee mov %ebp,%esi 12: e8 14 eb a0 ff callq 0xffa0eb2b 17: 49 39 ec cmp %rbp,%r12 1a: 0f 87 fa 02 00 00 ja 0x31a 20: e8 c6 e8 a0 ff callq 0xffa0e8eb 25: e9 c2 01 00 00 jmpq 0x1ec * 2a: e8 cc 31 56 ff callq 0xff5631fb <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 84 b0 01 00 00 je 0x1e7 37: 89 5c 24 0c mov %ebx,0xc(%rsp) 3b: 48 rex.W 3c: bd .byte 0xbd 3d: 00 00 add %al,(%rax)
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Title |
---|---|---|---|---|---|---|---|---|---|---|---|
ci-upstream-kasan-gce-smack-root | 2022/06/03 09:16 | upstream | 50fd82b3a9a9 | 02dddea8 | .config | log | report | syz | C | INFO: task hung in blkdev_fallocate | |
ci-upstream-kasan-gce-root | 2022/04/19 06:14 | upstream | b2d229d4ddb1 | 8bcc32a6 | .config | log | report | syz | C | INFO: task hung in blkdev_fallocate | |
ci-upstream-kasan-gce | 2021/12/30 08:55 | upstream | eec4df26e24e | 6cc879d4 | .config | log | report | syz | C | INFO: task hung in blkdev_fallocate | |
ci-upstream-linux-next-kasan-gce-root | 2022/05/28 17:39 | linux-next | d3fde8ff50ab | a46af346 | .config | log | report | syz | C | INFO: task hung in blkdev_fallocate | |
ci-upstream-kasan-gce-selinux-root | 2022/06/30 13:15 | upstream | d9b2ba67917c | 1434eec0 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-smack-root | 2022/06/20 21:28 | upstream | 78ca55889a54 | 8d15e28d | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-smack-root | 2022/06/14 13:31 | upstream | b13baccc3850 | 0f087040 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-root | 2022/06/14 13:25 | upstream | b13baccc3850 | 0f087040 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-root | 2022/04/29 13:00 | upstream | 38d741cb70b3 | e9076525 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-root | 2022/04/15 16:16 | upstream | 028192fea1de | 8bcc32a6 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-smack-root | 2022/04/12 15:29 | upstream | ce522ba9ef7e | af01ee7d | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-selinux-root | 2022/03/14 07:26 | upstream | f0e18b03fcaf | 9e8eaa75 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-root | 2022/03/08 10:49 | upstream | ea4424be1688 | 7bdd8b2c | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-root | 2022/01/16 20:45 | upstream | d0a231f01e5b | 723cfaf0 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-root | 2022/01/01 18:47 | upstream | 800829388818 | e1768e9c | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce | 2021/12/30 07:16 | upstream | eec4df26e24e | 6cc879d4 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-selinux-root | 2021/12/19 05:25 | upstream | 3f667b5d4053 | 44068e19 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-selinux-root | 2021/12/06 18:53 | upstream | 0fcfb00b28c0 | 579a8754 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-smack-root | 2021/12/03 03:28 | upstream | a51e3ac43ddb | 61f86278 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce | 2021/12/03 02:09 | upstream | a51e3ac43ddb | 61f86278 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce | 2021/11/27 21:36 | upstream | 741392771338 | 63eeac02 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce | 2021/11/26 23:32 | upstream | c5c17547b778 | 63eeac02 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-root | 2021/11/25 02:40 | upstream | 5f53fa508db0 | 545ab074 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce | 2021/11/14 23:34 | upstream | c8c109546a19 | 83f5c9b5 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-selinux-root | 2021/11/12 15:23 | upstream | 5833291ab6de | 75b04091 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-root | 2021/11/11 08:16 | upstream | 881007522c8f | 75b04091 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-root | 2021/11/08 17:01 | upstream | 6b75d88fa81b | d29682f1 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-root | 2021/10/28 21:23 | upstream | 1fc596a56b33 | be531bb4 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-386 | 2021/11/11 20:40 | upstream | debe436e77c7 | 75b04091 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-kasan-gce-386 | 2021/11/09 05:19 | upstream | e851dfae4371 | 8ab17e57 | .config | log | report | info | INFO: task hung in blkdev_fallocate | ||
ci-upstream-linux-next-kasan-gce-root | 2021/11/30 06:01 | linux-next | f81e94e91878 | d0830353 | .config | log | report | info | INFO: task can't die in blkdev_fallocate |