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Message-ID: <2025123016-CVE-2022-50821-89dd@gregkh> Date: Tue, 30 Dec 2025 13:09:25 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...nel.org> Subject: CVE-2022-50821: SUNRPC: Don't leak netobj memory when gss_read_proxy_verf() fails From: Greg Kroah-Hartman <gregkh@...nel.org> Description =========== In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Don't leak netobj memory when gss_read_proxy_verf() fails The Linux kernel CVE team has assigned CVE-2022-50821 to this issue. Affected and fixed versions =========================== Issue introduced in 3.10 with commit 030d794bf49855f5e2a9e8dfbfad34211d1eb08b and fixed in 4.19.270 with commit 76f2497a2faa6a4e91efb94a7f55705b403273fd Issue introduced in 3.10 with commit 030d794bf49855f5e2a9e8dfbfad34211d1eb08b and fixed in 5.4.229 with commit aa91afe597401b78baa7d751c71eedb92c80bd4d Issue introduced in 3.10 with commit 030d794bf49855f5e2a9e8dfbfad34211d1eb08b and fixed in 5.10.163 with commit 2cd6026e257362f030c8be57abaf7fc0049df60a Issue introduced in 3.10 with commit 030d794bf49855f5e2a9e8dfbfad34211d1eb08b and fixed in 5.15.87 with commit d01fa993eb7fbc305f0a9c3e8bfac6513efc13b6 Issue introduced in 3.10 with commit 030d794bf49855f5e2a9e8dfbfad34211d1eb08b and fixed in 6.0.17 with commit 67eb848161c2799f2007968ea3bc87adb15c9567 Issue introduced in 3.10 with commit 030d794bf49855f5e2a9e8dfbfad34211d1eb08b and fixed in 6.1.3 with commit c9ded831e2552b9c3cab7e2591a190e94f9d29c0 Issue introduced in 3.10 with commit 030d794bf49855f5e2a9e8dfbfad34211d1eb08b and fixed in 6.2 with commit da522b5fe1a5f8b7c20a0023e87b52a150e53bf5 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-2022-50821 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: net/sunrpc/auth_gss/svcauth_gss.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/76f2497a2faa6a4e91efb94a7f55705b403273fd https://git.kernel.org/stable/c/aa91afe597401b78baa7d751c71eedb92c80bd4d https://git.kernel.org/stable/c/2cd6026e257362f030c8be57abaf7fc0049df60a https://git.kernel.org/stable/c/d01fa993eb7fbc305f0a9c3e8bfac6513efc13b6 https://git.kernel.org/stable/c/67eb848161c2799f2007968ea3bc87adb15c9567 https://git.kernel.org/stable/c/c9ded831e2552b9c3cab7e2591a190e94f9d29c0 https://git.kernel.org/stable/c/da522b5fe1a5f8b7c20a0023e87b52a150e53bf5
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