Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/04/03 | upstream (ToT) | 3e92c1e6cd87 | C | [report] possible deadlock in iterate_dir |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/04/03 | upstream (ToT) | 3e92c1e6cd87 | C | [report] possible deadlock in iterate_dir |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-6.1 | possible deadlock in iterate_dir (2) | 2 | 232d | 258d | 0/3 | auto-obsoleted due to no activity on 2024/08/02 17:42 | |||
linux-6.1 | possible deadlock in iterate_dir | 2 | 512d | 518d | 0/3 | auto-obsoleted due to no activity on 2023/10/27 20:39 | |||
linux-4.14 | possible deadlock in iterate_dir ubifs | C | 11375 | 647d | 1642d | 0/1 | upstream: reported C repro on 2020/06/15 06:16 | ||
linux-5.15 | possible deadlock in iterate_dir (2) | 2 | 380d | 472d | 0/3 | auto-obsoleted due to no activity on 2024/03/08 13:21 | |||
linux-4.19 | possible deadlock in iterate_dir | 1 | 1814d | 1814d | 0/1 | auto-closed as invalid on 2020/04/24 15:06 | |||
upstream | possible deadlock in iterate_dir reiserfs | 23 | 477d | 720d | 0/28 | auto-obsoleted due to no activity on 2023/12/01 22:38 | |||
linux-5.15 | possible deadlock in iterate_dir | 1 | 627d | 627d | 0/3 | auto-obsoleted due to no activity on 2023/07/25 13:55 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2024/10/08 06:26 | 11m | retest repro | linux-5.15.y | report log |
REISERFS (device loop0): Using tea hash to sort names REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ====================================================== WARNING: possible circular locking dependency detected 5.15.153-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor153/3982 is trying to acquire lock: ffff0000d9f77090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 but task is already holding lock: ffff0000da140460 (sb_writers#8){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2492 [inline] ffff0000da140460 (sb_writers#8){.+.+}-{0:0}, at: iterate_dir+0x400/0x4e4 fs/readdir.c:70 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (sb_writers#8){.+.+}-{0:0}: percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1787 [inline] sb_start_write+0xf0/0x3ac include/linux/fs.h:1857 mnt_want_write_file+0x64/0x1e8 fs/namespace.c:421 reiserfs_ioctl+0x188/0x4b8 fs/reiserfs/ioctl.c:103 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #0 (&sbi->lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_dirty_inode+0xe4/0x204 fs/reiserfs/super.c:704 __mark_inode_dirty+0x2b0/0x10f4 fs/fs-writeback.c:2464 generic_update_time fs/inode.c:1817 [inline] inode_update_time fs/inode.c:1830 [inline] touch_atime+0x4d0/0xa4c fs/inode.c:1902 file_accessed include/linux/fs.h:2492 [inline] iterate_dir+0x400/0x4e4 fs/readdir.c:70 __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x1c4/0x4c4 fs/readdir.c:354 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sb_writers#8); lock(&sbi->lock); lock(sb_writers#8); lock(&sbi->lock); *** DEADLOCK *** 3 locks held by syz-executor153/3982: #0: ffff0000dbcbe5f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x128/0x170 fs/file.c:1088 #1: ffff0000df0b02e0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: iterate_dir+0x108/0x4e4 fs/readdir.c:55 #2: ffff0000da140460 (sb_writers#8){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2492 [inline] #2: ffff0000da140460 (sb_writers#8){.+.+}-{0:0}, at: iterate_dir+0x400/0x4e4 fs/readdir.c:70 stack backtrace: CPU: 0 PID: 3982 Comm: syz-executor153 Not tainted 5.15.153-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2133 check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 reiserfs_write_lock+0x7c/0xe8 fs/reiserfs/lock.c:27 reiserfs_dirty_inode+0xe4/0x204 fs/reiserfs/super.c:704 __mark_inode_dirty+0x2b0/0x10f4 fs/fs-writeback.c:2464 generic_update_time fs/inode.c:1817 [inline] inode_update_time fs/inode.c:1830 [inline] touch_atime+0x4d0/0xa4c fs/inode.c:1902 file_accessed include/linux/fs.h:2492 [inline] iterate_dir+0x400/0x4e4 fs/readdir.c:70 __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x1c4/0x4c4 fs/readdir.c:354 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/04/03 10:20 | linux-5.15.y | 9465fef4ae35 | 7925100d | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-linux-5-15-kasan-arm64 | possible deadlock in iterate_dir | |
2024/04/29 22:04 | linux-5.15.y | b925f60c6ee7 | f10afd69 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | possible deadlock in iterate_dir | ||
2024/12/09 02:06 | linux-5.15.y | 0a51d2d4527b | 9ac0fdc6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in iterate_dir | ||
2024/05/28 05:02 | linux-5.15.y | c61bd26ae81a | f550015e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in iterate_dir | ||
2024/05/06 15:58 | linux-5.15.y | 284087d4f7d5 | d884b519 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in iterate_dir | ||
2024/04/15 13:46 | linux-5.15.y | fa3df276cd36 | b9af7e61 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in iterate_dir | ||
2024/04/03 07:55 | linux-5.15.y | 9465fef4ae35 | 7925100d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in iterate_dir |