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Message-ID: <2025091151-CVE-2025-39787-227f@gregkh> Date: Thu, 11 Sep 2025 18:57:05 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...nel.org> Subject: CVE-2025-39787: soc: qcom: mdt_loader: Ensure we don't read past the ELF header From: Greg Kroah-Hartman <gregkh@...nel.org> Description =========== In the Linux kernel, the following vulnerability has been resolved: soc: qcom: mdt_loader: Ensure we don't read past the ELF header When the MDT loader is used in remoteproc, the ELF header is sanitized beforehand, but that's not necessary the case for other clients. Validate the size of the firmware buffer to ensure that we don't read past the end as we iterate over the header. e_phentsize and e_shentsize are validated as well, to ensure that the assumptions about step size in the traversal are valid. The Linux kernel CVE team has assigned CVE-2025-39787 to this issue. Affected and fixed versions =========================== Issue introduced in 4.11 with commit 2aad40d911eeb7dcac91c669f2762a28134f0eb1 and fixed in 5.4.297 with commit 1096eb63ecfc8df90b70cd068e6de0c2ff204dfd Issue introduced in 4.11 with commit 2aad40d911eeb7dcac91c669f2762a28134f0eb1 and fixed in 5.10.241 with commit e1720eb32acf411c328af6a8c8f556c94535808e Issue introduced in 4.11 with commit 2aad40d911eeb7dcac91c669f2762a28134f0eb1 and fixed in 5.15.190 with commit 0d59ce2bfc3bb13abe6240335a1bf7b96536d022 Issue introduced in 4.11 with commit 2aad40d911eeb7dcac91c669f2762a28134f0eb1 and fixed in 6.1.149 with commit 43d26997d88c4056fce0324e72f62556bc7e8e8d Issue introduced in 4.11 with commit 2aad40d911eeb7dcac91c669f2762a28134f0eb1 and fixed in 6.6.103 with commit 981c845f29838e468a9bfa87f784307193a31297 Issue introduced in 4.11 with commit 2aad40d911eeb7dcac91c669f2762a28134f0eb1 and fixed in 6.12.44 with commit 87bfabb3b2f46827639173f143aa43f7cfc0a7e6 Issue introduced in 4.11 with commit 2aad40d911eeb7dcac91c669f2762a28134f0eb1 and fixed in 6.16.4 with commit 81278be4eb5f08ba2c68c3055893e61cc03727fe Issue introduced in 4.11 with commit 2aad40d911eeb7dcac91c669f2762a28134f0eb1 and fixed in 6.17-rc1 with commit 9f9967fed9d066ed3dae9372b45ffa4f6fccfeef 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-2025-39787 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/soc/qcom/mdt_loader.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/1096eb63ecfc8df90b70cd068e6de0c2ff204dfd https://git.kernel.org/stable/c/e1720eb32acf411c328af6a8c8f556c94535808e https://git.kernel.org/stable/c/0d59ce2bfc3bb13abe6240335a1bf7b96536d022 https://git.kernel.org/stable/c/43d26997d88c4056fce0324e72f62556bc7e8e8d https://git.kernel.org/stable/c/981c845f29838e468a9bfa87f784307193a31297 https://git.kernel.org/stable/c/87bfabb3b2f46827639173f143aa43f7cfc0a7e6 https://git.kernel.org/stable/c/81278be4eb5f08ba2c68c3055893e61cc03727fe https://git.kernel.org/stable/c/9f9967fed9d066ed3dae9372b45ffa4f6fccfeef
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