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Message-ID: <2024111954-CVE-2024-50291-5c62@gregkh> Date: Tue, 19 Nov 2024 02:32:46 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2024-50291: media: dvb-core: add missing buffer index check Description =========== In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: add missing buffer index check dvb_vb2_expbuf() didn't check if the given buffer index was for a valid buffer. Add this check. The Linux kernel CVE team has assigned CVE-2024-50291 to this issue. Affected and fixed versions =========================== Issue introduced in 6.8 with commit 7dc866df4012 and fixed in 6.11.8 with commit 721c37af0355 Issue introduced in 6.8 with commit 7dc866df4012 and fixed in 6.12 with commit fa88dc7db176 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-2024-50291 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/media/dvb-core/dvb_vb2.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/721c37af0355cc0b540909c57fd7930dc99c72d8 https://git.kernel.org/stable/c/fa88dc7db176c79b50adb132a56120a1d4d9d18b
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