Subject loop: Detect write requests that failed to wait for completion.
Author penguin-kernel@i-love.sakura.ne.jp
Date 2026-10-11 11:29:33 +0000 UTC
Version
Cc axboe@kernel.dk bvanassche@acm.org eadavis@qq.com hch@lst.de jfs-discussion@lists.sourceforge.net linux-block@vger.kernel.org nilay@linux.ibm.com penguin-kernel@i-love.sakura.ne.jp shaggy@kernel.org
Patches (1)
Name Content [All]
[PATCH v2] loop: Detect write requests that failed to wait for completion. [Body]
Series Summary
8 Findings
finding BUG: loop0 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log Syz Repro
finding BUG: loop1 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log Syz Repro
finding BUG: loop2 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log Syz Repro
finding AI confirmed BUG: loop3 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log AI Trajectory
finding AI confirmed BUG: loop4 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log AI Trajectory
finding AI confirmed BUG: loop6 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log AI Trajectory
finding AI confirmed BUG: loop7 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log AI Trajectory
finding AI confirmed BUG: loop8 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log AI Trajectory
Sessions
Session 2026-10-11
8 Findings
ID (for dev) c6461002-0906-439c-879a-96fbb1f03a70
Status finished
Triaged OK [Log] [Trajectory]
Execution Log [Link]
Test Base Patched Verdict
[KASAN] Build Base 4da93acb4f2ed06640255ad98801d0f0c734ff07 [Config] passed [Log]
[KASAN] Boot test: Base 4da93acb4f2ed06640255ad98801d0f0c734ff07 [Config] passed [Log]
[KASAN] Build Patched 4da93acb4f2ed06640255ad98801d0f0c734ff07 [Config] [patched] passed [Log]
[KASAN] Boot test: Patched 4da93acb4f2ed06640255ad98801d0f0c734ff07 [Config] [patched] passed [Log]
[KASAN] Fuzz 4da93acb4f2ed06640255ad98801d0f0c734ff07 [Config] 4da93acb4f2ed06640255ad98801d0f0c734ff07 [Config] [patched] passed [Log] [Artifacts]
finding BUG: loop0 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log Syz Repro
finding BUG: loop1 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log Syz Repro
finding BUG: loop2 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log Syz Repro
finding AI confirmed BUG: loop3 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log AI Trajectory
finding AI confirmed BUG: loop4 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log AI Trajectory
finding AI confirmed BUG: loop6 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log AI Trajectory
finding AI confirmed BUG: loop7 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log AI Trajectory
finding AI confirmed BUG: loop8 has no users, but backend found I/O issued by syz.NUM.NUM/NUM.
Log AI Trajectory