Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/03/30 | upstream (ToT) | 486291a0e624 | C | [report] possible deadlock in filename_create |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/03/30 | upstream (ToT) | 486291a0e624 | C | [report] possible deadlock in filename_create |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.19 | possible deadlock in filename_create reiserfs | 1 | 603d | 603d | 0/1 | upstream: reported on 2023/02/13 11:59 | |||
linux-5.15 | possible deadlock in filename_create | 23 | 349d | 572d | 0/3 | auto-obsoleted due to no activity on 2024/02/02 20:22 | |||
linux-6.1 | possible deadlock in filename_create | 15 | 359d | 560d | 0/3 | auto-obsoleted due to no activity on 2024/01/23 21:11 | |||
linux-6.1 | possible deadlock in filename_create (2) origin:upstream | C | 13 | 9h15m | 220d | 0/3 | upstream: reported C repro on 2024/03/02 21:45 | ||
linux-4.14 | possible deadlock in filename_create reiserfs | 1 | 637d | 637d | 0/1 | upstream: reported on 2023/01/10 15:41 | |||
upstream | possible deadlock in filename_create reiserfs | C | 97 | 268d | 699d | 0/28 | auto-obsoleted due to no activity on 2024/03/25 04:40 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2024/10/05 10:58 | 14m | retest repro | linux-5.15.y | report log | |
2024/10/05 10:58 | 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 5.15.156-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor141/4030 is trying to acquire lock: ffff0000dece02e0 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:824 [inline] ffff0000dece02e0 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: filename_create+0x204/0x468 fs/namei.c:3835 but task is already holding lock: ffff0000db852460 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (sb_writers#8){.+.+}-{0:0}: percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1811 [inline] sb_start_write+0xf0/0x3ac include/linux/fs.h:1881 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 -> #1 (&sbi->lock){+.+.}-{3:3}: __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_lookup+0x130/0x3c4 fs/reiserfs/namei.c:364 lookup_one_qstr_excl+0x108/0x230 fs/namei.c:1563 filename_create+0x230/0x468 fs/namei.c:3836 do_mkdirat+0xac/0x610 fs/namei.c:4080 __do_sys_mkdirat fs/namei.c:4105 [inline] __se_sys_mkdirat fs/namei.c:4103 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103 __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 (&type->i_mutex_dir_key#6/1){+.+.}-{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 down_write_nested+0xc0/0x130 kernel/locking/rwsem.c:1667 inode_lock_nested include/linux/fs.h:824 [inline] filename_create+0x204/0x468 fs/namei.c:3835 do_mkdirat+0xac/0x610 fs/namei.c:4080 __do_sys_mkdirat fs/namei.c:4105 [inline] __se_sys_mkdirat fs/namei.c:4103 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103 __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: Chain exists of: &type->i_mutex_dir_key#6/1 --> &sbi->lock --> sb_writers#8 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sb_writers#8); lock(&sbi->lock); lock(sb_writers#8); lock(&type->i_mutex_dir_key#6/1); *** DEADLOCK *** 1 lock held by syz-executor141/4030: #0: ffff0000db852460 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:377 stack backtrace: CPU: 1 PID: 4030 Comm: syz-executor141 Not tainted 5.15.156-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 down_write_nested+0xc0/0x130 kernel/locking/rwsem.c:1667 inode_lock_nested include/linux/fs.h:824 [inline] filename_create+0x204/0x468 fs/namei.c:3835 do_mkdirat+0xac/0x610 fs/namei.c:4080 __do_sys_mkdirat fs/namei.c:4105 [inline] __se_sys_mkdirat fs/namei.c:4103 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103 __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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/04/20 18:33 | linux-5.15.y | c52b9710c83d | af24b050 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filename_create | |
2024/03/30 14:27 | linux-5.15.y | 9465fef4ae35 | 6baf5069 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filename_create | |
2024/04/30 23:43 | linux-5.15.y | b925f60c6ee7 | 3ce4924c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | possible deadlock in filename_create | ||
2024/05/13 05:04 | linux-5.15.y | 284087d4f7d5 | 9026e142 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filename_create | ||
2024/05/12 15:10 | linux-5.15.y | 284087d4f7d5 | 9026e142 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filename_create | ||
2024/04/23 02:18 | linux-5.15.y | c52b9710c83d | 36c961ad | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filename_create | ||
2024/04/21 09:04 | linux-5.15.y | c52b9710c83d | af24b050 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filename_create | ||
2024/03/31 17:57 | linux-5.15.y | 9465fef4ae35 | 6baf5069 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filename_create | ||
2024/03/30 13:41 | linux-5.15.y | 9465fef4ae35 | 6baf5069 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filename_create | ||
2024/03/30 13:41 | linux-5.15.y | 9465fef4ae35 | 6baf5069 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | possible deadlock in filename_create |