CVE-2026-74361: nvme: fix FDP fdpcidx bounds check
Greg Kroah-Hartman <[email protected]>
| Newsgroups | org.kernel.vger.linux-cve-announce |
|---|---|
| Message-ID | <2026081501-CVE-2026-74361-9a5d@gregkh> |
From: Greg Kroah-Hartman <[email protected]> Description =========== In the Linux kernel, the following vulnerability has been resolved: nvme: fix FDP fdpcidx bounds check The fdpcidx bounds check sets n = NUMFDPC + 1 but used > instead of >=, incorrectly accepting fdp_idx when it equals n (i.e. NUMFDPC + 1). The Linux kernel CVE team has assigned CVE-2026-74361 to this issue. Affected and fixed versions =========================== Issue introduced in 6.16 with commit 30b5f20bb2ddab013035399e5c7e6577da49320a and fixed in 6.18.40 with commit 5e406928404d67a8da8aa3ae21732e1ea1a04118 Issue introduced in 6.16 with commit 30b5f20bb2ddab013035399e5c7e6577da49320a and fixed in 7.1.5 with commit 5d0e7d2af884b91329235abb16652ae4eead8079 Issue introduced in 6.16 with commit 30b5f20bb2ddab013035399e5c7e6577da49320a and fixed in 7.2-rc1 with commit 0967074f6830718fd2597404ef119bddd0dbfd00 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-74361 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/nvme/host/core.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/5e406928404d67a8da8aa3ae21732e1ea1a04118 https://git.kernel.org/stable/c/5d0e7d2af884b91329235abb16652ae4eead8079 https://git.kernel.org/stable/c/0967074f6830718fd2597404ef119bddd0dbfd00