CVE-2026-90267

high

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/e90f746f4ca3896ca560e820b7b6b0a467026938

https://git.kernel.org/stable/c/bb31844d88b77138b67aa20c3600203baff40140

https://git.kernel.org/stable/c/744a65e113094756e6c1cfba9ff1bf4247cb68d4

https://git.kernel.org/stable/c/710a2448a06a8215ba8acb4a2791954800f7db0a

https://git.kernel.org/stable/c/5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-81860

Details

Source: Mitre, NVD

Published: 2026-09-17

Updated: 2026-10-21

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

EPSS

EPSS: 0.00209