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🐞 Open [1162] 🐞 Fixed [4299] 🐞 Invalid [9644] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.19 | possible deadlock in blkdev_put | C | 1 | 25d | 25d | 0/1 | upstream: reported C repro on 2023/01/01 16:48 | ||
upstream | possible deadlock in blkdev_put | 1 | 858d | 858d | 0/24 | auto-closed as invalid on 2021/01/18 22:03 | |||
upstream | possible deadlock in blkdev_put (2) | C | done | 502 | 324d | 426d | 22/24 | fixed on 2022/03/08 16:11 | |
linux-4.14 | possible deadlock in blkdev_put | C | 5 | 7d07h | 848d | 0/1 | upstream: reported C repro on 2020/10/01 09:27 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2022/09/01 05:27 | 24m | retest repro | upstream | OK log | |
2022/03/24 18:02 | 24m | hch@lst.de | git://git.infradead.org/users/hch/block.git loop-fixes | OK | |
2022/03/16 07:55 | 16m | hch@lst.de | git://git.infradead.org/users/hch/misc.git loop-fixes | OK | |
2022/03/16 07:09 | 19m | hch@lst.de | git://git.infradead.org/users/hch/misc.git loop-fixes | report log | |
2022/03/16 06:43 | 21m | hch@lst.de | git://git.infradead.org/users/hch/misc.git loop-fixes | report log | |
2022/03/16 06:40 | 0m | hch@lst.de | git://git.infradead.org/users/hch/block.git loop-fixes | error |
====================================================== WARNING: possible circular locking dependency detected 5.17.0-rc7-syzkaller-00241-gf0e18b03fcaf #0 Not tainted ------------------------------------------------------ udevd/3652 is trying to acquire lock: ffff888018c7a938 ((wq_completion)loop0){+.+.}-{0:0}, at: flush_workqueue+0xe1/0x13a0 kernel/workqueue.c:2824 but task is already holding lock: ffff88801a0fa918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x99/0x950 block/bdev.c:902 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&disk->open_mutex){+.+.}-{3:3}: __mutex_lock_common kernel/locking/mutex.c:600 [inline] __mutex_lock+0x12f/0x12f0 kernel/locking/mutex.c:733 blkdev_get_by_dev.part.0+0x40e/0xc70 block/bdev.c:804 blkdev_get_by_dev+0x6b/0x80 block/bdev.c:847 swsusp_check+0x97/0x420 kernel/power/swap.c:1526 software_resume.part.0+0x102/0x1f0 kernel/power/hibernate.c:979 software_resume kernel/power/hibernate.c:86 [inline] resume_store+0x161/0x190 kernel/power/hibernate.c:1181 kobj_attr_store+0x50/0x80 lib/kobject.c:856 sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:136 kernfs_fop_write_iter+0x3f8/0x610 fs/kernfs/file.c:296 call_write_iter include/linux/fs.h:2074 [inline] new_sync_write+0x431/0x660 fs/read_write.c:503 vfs_write+0x7cd/0xae0 fs/read_write.c:590 ksys_write+0x12d/0x250 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae -> #5 (system_transition_mutex/1){+.+.}-{3:3}: __mutex_lock_common kernel/locking/mutex.c:600 [inline] __mutex_lock+0x12f/0x12f0 kernel/locking/mutex.c:733 software_resume.part.0+0x19/0x1f0 kernel/power/hibernate.c:934 software_resume kernel/power/hibernate.c:86 [inline] resume_store+0x161/0x190 kernel/power/hibernate.c:1181 kobj_attr_store+0x50/0x80 lib/kobject.c:856 sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:136 kernfs_fop_write_iter+0x3f8/0x610 fs/kernfs/file.c:296 call_write_iter include/linux/fs.h:2074 [inline] new_sync_write+0x431/0x660 fs/read_write.c:503 vfs_write+0x7cd/0xae0 fs/read_write.c:590 ksys_write+0x12d/0x250 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae -> #4 (&of->mutex){+.+.}-{3:3}: __mutex_lock_common kernel/locking/mutex.c:600 [inline] __mutex_lock+0x12f/0x12f0 kernel/locking/mutex.c:733 kernfs_seq_start+0x47/0x470 fs/kernfs/file.c:112 seq_read_iter+0x2c6/0x1280 fs/seq_file.c:225 kernfs_fop_read_iter+0x514/0x6f0 fs/kernfs/file.c:241 call_read_iter include/linux/fs.h:2068 [inline] new_sync_read+0x429/0x6e0 fs/read_write.c:400 vfs_read+0x35c/0x600 fs/read_write.c:481 ksys_read+0x12d/0x250 fs/read_write.c:619 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae -> #3 (&p->lock){+.+.}-{3:3}: __mutex_lock_common kernel/locking/mutex.c:600 [inline] __mutex_lock+0x12f/0x12f0 kernel/locking/mutex.c:733 seq_read_iter+0xdf/0x1280 fs/seq_file.c:182 call_read_iter include/linux/fs.h:2068 [inline] generic_file_splice_read+0x45b/0x6d0 fs/splice.c:311 do_splice_to+0x1bf/0x250 fs/splice.c:796 splice_direct_to_actor+0x2c2/0x8c0 fs/splice.c:870 do_splice_direct+0x1b3/0x280 fs/splice.c:979 do_sendfile+0xaf2/0x1250 fs/read_write.c:1245 __do_sys_sendfile64 fs/read_write.c:1310 [inline] __se_sys_sendfile64 fs/read_write.c:1296 [inline] __x64_sys_sendfile64+0x1cc/0x210 fs/read_write.c:1296 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae -> #2 (sb_writers#3){.+.+}-{0:0}: percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1722 [inline] sb_start_write include/linux/fs.h:1792 [inline] file_start_write include/linux/fs.h:2937 [inline] lo_write_bvec drivers/block/loop.c:243 [inline] lo_write_simple drivers/block/loop.c:266 [inline] do_req_filebacked drivers/block/loop.c:495 [inline] loop_handle_cmd drivers/block/loop.c:1852 [inline] loop_process_work+0x1499/0x1db0 drivers/block/loop.c:1892 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307 worker_thread+0x657/0x1110 kernel/workqueue.c:2454 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 -> #1 ((work_completion)(&lo->rootcg_work)){+.+.}-{0:0}: process_one_work+0x91b/0x1650 kernel/workqueue.c:2283 worker_thread+0x657/0x1110 kernel/workqueue.c:2454 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 -> #0 ((wq_completion)loop0){+.+.}-{0:0}: check_prev_add kernel/locking/lockdep.c:3063 [inline] check_prevs_add kernel/locking/lockdep.c:3186 [inline] validate_chain kernel/locking/lockdep.c:3801 [inline] __lock_acquire+0x2ad4/0x56c0 kernel/locking/lockdep.c:5027 lock_acquire kernel/locking/lockdep.c:5639 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5604 flush_workqueue+0x110/0x13a0 kernel/workqueue.c:2827 drain_workqueue+0x1a5/0x3c0 kernel/workqueue.c:2992 destroy_workqueue+0x71/0x800 kernel/workqueue.c:4429 __loop_clr_fd+0x1ab/0xe20 drivers/block/loop.c:1124 lo_release+0x1ac/0x1f0 drivers/block/loop.c:1756 blkdev_put_whole block/bdev.c:689 [inline] blkdev_put+0x2de/0x950 block/bdev.c:944 blkdev_close+0x6a/0x80 block/fops.c:517 __fput+0x286/0x9f0 fs/file_table.c:317 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae other info that might help us debug this: Chain exists of: (wq_completion)loop0 --> system_transition_mutex/1 --> &disk->open_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&disk->open_mutex); lock(system_transition_mutex/1); lock(&disk->open_mutex); lock((wq_completion)loop0); *** DEADLOCK *** 1 lock held by udevd/3652: #0: ffff88801a0fa918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x99/0x950 block/bdev.c:902 stack backtrace: CPU: 0 PID: 3652 Comm: udevd Not tainted 5.17.0-rc7-syzkaller-00241-gf0e18b03fcaf #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 check_noncircular+0x25f/0x2e0 kernel/locking/lockdep.c:2143 check_prev_add kernel/locking/lockdep.c:3063 [inline] check_prevs_add kernel/locking/lockdep.c:3186 [inline] validate_chain kernel/locking/lockdep.c:3801 [inline] __lock_acquire+0x2ad4/0x56c0 kernel/locking/lockdep.c:5027 lock_acquire kernel/locking/lockdep.c:5639 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5604 flush_workqueue+0x110/0x13a0 kernel/workqueue.c:2827 drain_workqueue+0x1a5/0x3c0 kernel/workqueue.c:2992 destroy_workqueue+0x71/0x800 kernel/workqueue.c:4429 __loop_clr_fd+0x1ab/0xe20 drivers/block/loop.c:1124 lo_release+0x1ac/0x1f0 drivers/block/loop.c:1756 blkdev_put_whole block/bdev.c:689 [inline] blkdev_put+0x2de/0x950 block/bdev.c:944 blkdev_close+0x6a/0x80 block/fops.c:517 __fput+0x286/0x9f0 fs/file_table.c:317 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f0ca7b90fc3 Code: 48 ff ff ff b8 ff ff ff ff e9 3e ff ff ff 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 RSP: 002b:00007ffcf6cd76d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 00007f0ca7a396a8 RCX: 00007f0ca7b90fc3 RDX: 000000000000001c RSI: 00007ffcf6cd6ed8 RDI: 0000000000000008 RBP: 0000564a5512feb0 R08: 0000000000000007 R09: 0000564a55126a00 R10: 0000000002423870 R11: 0000000000000246 R12: 0000000000000002 R13: 0000564a55116f80 R14: 0000000000000008 R15: 0000564a550e82c0 </TASK> I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0 I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 Buffer I/O error on dev loop0, logical block 0, async page read
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
ci-qemu-upstream | 2022/03/14 04:44 | upstream | f0e18b03fcaf | 9e8eaa75 | .config | console log | report | syz | C | possible deadlock in blkdev_put | ||
ci-upstream-kasan-gce | 2022/05/24 01:16 | upstream | 1e57930e9f40 | e7f9308d | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/24 00:08 | upstream | 1e57930e9f40 | e7f9308d | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/23 10:19 | upstream | 4b0986a3613c | 4c7657cb | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/23 06:59 | upstream | 4b0986a3613c | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/23 04:46 | upstream | 4b0986a3613c | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/23 03:26 | upstream | 4b0986a3613c | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/23 01:39 | upstream | 4b0986a3613c | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/22 20:54 | upstream | eaea45fc0e7b | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/22 18:56 | upstream | eaea45fc0e7b | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-root | 2022/05/22 12:50 | upstream | eaea45fc0e7b | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/22 10:13 | upstream | eaea45fc0e7b | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/22 09:51 | upstream | eaea45fc0e7b | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/22 07:33 | upstream | eaea45fc0e7b | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/22 06:31 | upstream | 6c3f5bec9b40 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/22 04:53 | upstream | 6c3f5bec9b40 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/22 03:47 | upstream | 6c3f5bec9b40 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/22 01:08 | upstream | 6c3f5bec9b40 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-smack-root | 2022/05/21 19:36 | upstream | 6c3f5bec9b40 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/21 16:44 | upstream | 3b5e1590a267 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/21 15:24 | upstream | 3b5e1590a267 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/21 13:56 | upstream | 3b5e1590a267 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/21 12:48 | upstream | 3b5e1590a267 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/21 09:14 | upstream | 3b5e1590a267 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-smack-root | 2022/05/21 07:34 | upstream | 3b5e1590a267 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/21 06:15 | upstream | 3b5e1590a267 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/21 03:20 | upstream | 3d7285a335ed | bd37ad7e | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/20 20:21 | upstream | 3d7285a335ed | bd37ad7e | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-root | 2022/05/20 16:48 | upstream | 3d7285a335ed | bd37ad7e | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/20 15:35 | upstream | 3d7285a335ed | cb1ac2e7 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/20 14:01 | upstream | 3d7285a335ed | cb1ac2e7 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/20 12:33 | upstream | b015dcd62b86 | cb1ac2e7 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/20 10:04 | upstream | b015dcd62b86 | cb1ac2e7 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-root | 2022/05/20 01:42 | upstream | b015dcd62b86 | cb1ac2e7 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/20 00:03 | upstream | b015dcd62b86 | cb1ac2e7 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce | 2022/05/19 22:45 | upstream | f993aed406ea | 50c53f39 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-selinux-root | 2022/05/18 14:10 | upstream | 210e04ff7681 | 50c53f39 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-qemu-upstream | 2022/05/12 16:52 | upstream | feb9c5e19e91 | 9ad6612a | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-smack-root | 2022/03/12 08:01 | upstream | 68453767131a | 9e8eaa75 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-selinux-root | 2022/03/08 16:16 | upstream | ea4424be1688 | 9e8eaa75 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-386 | 2022/05/24 02:36 | upstream | 1e57930e9f40 | e7f9308d | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-386 | 2022/05/23 14:11 | upstream | 4b0986a3613c | 4c7657cb | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-qemu-upstream-386 | 2022/05/23 12:09 | upstream | 4b0986a3613c | 4c7657cb | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-qemu-upstream-386 | 2022/05/22 23:28 | upstream | 978df3e15846 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-qemu-upstream-386 | 2022/05/22 08:46 | upstream | eaea45fc0e7b | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-386 | 2022/05/21 23:38 | upstream | 6c3f5bec9b40 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-386 | 2022/05/21 21:50 | upstream | 6c3f5bec9b40 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-386 | 2022/05/21 19:04 | upstream | 6c3f5bec9b40 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-qemu-upstream-386 | 2022/05/21 17:47 | upstream | 6c3f5bec9b40 | 7268fa62 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-386 | 2022/05/20 19:45 | upstream | 3d7285a335ed | bd37ad7e | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-386 | 2022/05/20 18:06 | upstream | 3d7285a335ed | bd37ad7e | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-386 | 2022/05/20 05:23 | upstream | b015dcd62b86 | cb1ac2e7 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-386 | 2022/05/20 03:46 | upstream | b015dcd62b86 | cb1ac2e7 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-kasan-gce-386 | 2022/05/20 03:09 | upstream | b015dcd62b86 | cb1ac2e7 | .config | console log | report | info | possible deadlock in blkdev_put | |||
ci-upstream-linux-next-kasan-gce-root | 2022/04/04 04:41 | linux-next | 696206280c5e | 79a2a8fc | .config | console log | report | info | possible deadlock in blkdev_put |