Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: raid1: fix nr_pending leak in REQ_ATOMIC bad-block error path In raid1_write_request(), each per-mirror loop iteration begins by incrementing rdev->nr_pending. If a REQ_ATOMIC write encounters a badblock within the requested range, the code jumps to err_handle without dropping the reference taken for the current mirror. err_handle's cleanup loop will only decrements for k < i and r1_bio->bios[k] is non-NULL. The current slot is therefore skipped, leaving its nr_pending reference leaked permanently. The reference prevents the rdev from ever being removed, since raid1_remove_conf() refuses to remove an rdev with nr_pending > 0. Fix this by calling rdev_dec_pending() before jumping to err_handle.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca before 5ac9e793ba2583d72740d929e7858a6c82e22ed5; affected f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca before 731485617bf862f1289c3f40ed1f800d0475826f; affected f2a38abf5f1c5aeb3be8e9f4d3d815c867fff7ca before 909d9dc3b5730c8ed7b764c68bc788342df2a07b |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.