CVE-2026-90267
scsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
| Last Updated | Oct 30, 2026 |
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Affected Versions
Linux / Linux
81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 < 05bc68669549bfddfdeef2fd119855cab3e9615a 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 < 710a2448a06a8215ba8acb4a2791954800f7db0a 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 < 744a65e113094756e6c1cfba9ff1bf4247cb68d4 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 < e90f746f4ca3896ca560e820b7b6b0a467026938 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 < 5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 < bb31844d88b77138b67aa20c3600203baff40140
Linux / Linux
4.12
References
git.kernel.org: https://git.kernel.org/stable/c/05bc68669549bfddfdeef2fd119855cab3e9615a 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/e90f746f4ca3896ca560e820b7b6b0a467026938 git.kernel.org: https://git.kernel.org/stable/c/5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d git.kernel.org: https://git.kernel.org/stable/c/bb31844d88b77138b67aa20c3600203baff40140