← Back to CVE List
CVE-2026-90267NVD
Vulnerability Summary
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.
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.
Affected & Patched Versions
- Linux Linux >= 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 and < 5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d
- Linux Linux >= 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 and < bb31844d88b77138b67aa20c3600203baff40140
- Linux Linux >= 4.12
- Linux Linux 5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d
- Linux Linux bb31844d88b77138b67aa20c3600203baff40140