CVEvulnerability
CVE-2026-90267
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-30
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
scsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails
sd_set_special_bvec() allocates a special payload page for UNMAP and
WRITE SAME commands. If scsi_alloc_sgtables() fails afterward in
sd_setup_unmap_cmnd() or sd_setup_write_same{10,16}_cmnd(), the SCSI
midlayer does not call uninit_command() because RQF_DONTPREP is not set
yet, leaking the page.
Call sd_uninit_command() on error, and clear RQF_SPECIAL_PAYLOAD after
freeing the page.
References
- https://git.kernel.org/stable/c/05bc68669549bfddfdeef2fd119855cab3e9615a git.kernel.org
- https://git.kernel.org/stable/c/5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d git.kernel.org
- https://git.kernel.org/stable/c/710a2448a06a8215ba8acb4a2791954800f7db0a git.kernel.org
- https://git.kernel.org/stable/c/744a65e113094756e6c1cfba9ff1bf4247cb68d4 git.kernel.org
- https://git.kernel.org/stable/c/bb31844d88b77138b67aa20c3600203baff40140 git.kernel.org
- https://git.kernel.org/stable/c/e90f746f4ca3896ca560e820b7b6b0a467026938 git.kernel.org