Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2025/10/18 | upstream (ToT) | f406055cb18c | C | [report] KASAN: slab-use-after-free Write in gfs2_qd_dealloc |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2025/10/18 | upstream (ToT) | f406055cb18c | C | [report] KASAN: slab-use-after-free Write in gfs2_qd_dealloc |
============================================ WARNING: possible recursive locking detected syzkaller #0 Not tainted -------------------------------------------- kworker/1:1H/51 is trying to acquire lock: ffff0000d9911558 (&gl->gl_lockref.lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] ffff0000d9911558 (&gl->gl_lockref.lock){+.+.}-{2:2}, at: lockref_get+0x20/0x78 lib/lockref.c:50 but task is already holding lock: ffff0000d9911558 (&gl->gl_lockref.lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] ffff0000d9911558 (&gl->gl_lockref.lock){+.+.}-{2:2}, at: glock_work_func+0x98/0x428 fs/gfs2/glock.c:1074 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&gl->gl_lockref.lock); lock(&gl->gl_lockref.lock); *** DEADLOCK *** May be due to missing lock nesting notation 3 locks held by kworker/1:1H/51: #0: ffff0000c4fbc538 ((wq_completion)glock_workqueue){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff80001ce47c20 ((work_completion)(&(&gl->gl_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000d9911558 (&gl->gl_lockref.lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] #2: ffff0000d9911558 (&gl->gl_lockref.lock){+.+.}-{2:2}, at: glock_work_func+0x98/0x428 fs/gfs2/glock.c:1074 stack backtrace: CPU: 1 PID: 51 Comm: kworker/1:1H Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 Workqueue: glock_workqueue glock_work_func Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 __lock_acquire+0x18b4/0x6544 kernel/locking/lockdep.c:-1 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] lockref_get+0x20/0x78 lib/lockref.c:50 gfs2_glock_hold fs/gfs2/glock.c:192 [inline] do_xmote+0x4d8/0x1198 fs/gfs2/glock.c:806 run_queue+0x458/0x690 fs/gfs2/glock.c:918 glock_work_func+0x1fc/0x428 fs/gfs2/glock.c:1089 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2025/10/16 22:07 | linux-6.1.y | c2fda4b3f577 | 19568248 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci2-linux-6-1-kasan-arm64 | possible deadlock in lockref_get | |
2025/10/16 19:03 | linux-6.1.y | c2fda4b3f577 | 19568248 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci2-linux-6-1-kasan-arm64 | possible deadlock in lockref_get | |
2025/10/16 17:23 | linux-6.1.y | c2fda4b3f577 | 19568248 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci2-linux-6-1-kasan-arm64 | possible deadlock in lockref_get | |
2025/10/16 15:50 | linux-6.1.y | c2fda4b3f577 | 19568248 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci2-linux-6-1-kasan-arm64 | possible deadlock in lockref_get | |
2025/10/16 14:23 | linux-6.1.y | c2fda4b3f577 | 19568248 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci2-linux-6-1-kasan-arm64 | possible deadlock in lockref_get | |
2025/10/16 20:28 | linux-6.1.y | c2fda4b3f577 | 19568248 | .config | console log | report | syz / log | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci2-linux-6-1-kasan-arm64 | possible deadlock in lockref_get | ||
2025/10/16 12:45 | linux-6.1.y | c2fda4b3f577 | 19568248 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | possible deadlock in lockref_get |