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Message-ID: <2024110835-CVE-2024-50188-6f0c@gregkh> Date: Fri, 8 Nov 2024 06:38:41 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2024-50188: net: phy: dp83869: fix memory corruption when enabling fiber Description =========== In the Linux kernel, the following vulnerability has been resolved: net: phy: dp83869: fix memory corruption when enabling fiber When configuring the fiber port, the DP83869 PHY driver incorrectly calls linkmode_set_bit() with a bit mask (1 << 10) rather than a bit number (10). This corrupts some other memory location -- in case of arm64 the priv pointer in the same structure. Since the advertising flags are updated from supported at the end of the function the incorrect line isn't needed at all and can be removed. The Linux kernel CVE team has assigned CVE-2024-50188 to this issue. Affected and fixed versions =========================== Issue introduced in 5.10 with commit a29de52ba2a1 and fixed in 5.10.227 with commit 21b5af7f0c99 Issue introduced in 5.10 with commit a29de52ba2a1 and fixed in 5.15.168 with commit ad0d76b8ee5d Issue introduced in 5.10 with commit a29de52ba2a1 and fixed in 6.1.113 with commit c1944b425364 Issue introduced in 5.10 with commit a29de52ba2a1 and fixed in 6.6.57 with commit 9ca634676ff6 Issue introduced in 5.10 with commit a29de52ba2a1 and fixed in 6.11.4 with commit e3f2de32dae3 Issue introduced in 5.10 with commit a29de52ba2a1 and fixed in 6.12-rc3 with commit a842e443ca81 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-2024-50188 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/net/phy/dp83869.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/21b5af7f0c99b3bf1fd02016e6708b613acbcaf4 https://git.kernel.org/stable/c/ad0d76b8ee5db063791cc2e7a30ffc9852ac37c4 https://git.kernel.org/stable/c/c1944b4253649fc6f2fb53e7d6302eb414d2182c https://git.kernel.org/stable/c/9ca634676ff66e1d616259e136f96f96b2a1759a https://git.kernel.org/stable/c/e3f2de32dae35bc7d173377dc97b5bc9fcd9fc84 https://git.kernel.org/stable/c/a842e443ca8184f2dc82ab307b43a8b38defd6a5
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