Bugzilla – Bug 1226625
VUL-0: CVE-2022-48741: kernel: ovl: fix NULL pointer dereference in copy up warning
Last modified: 2024-06-21 10:28:01 UTC
Description =========== In the Linux kernel, the following vulnerability has been resolved: ovl: fix NULL pointer dereference in copy up warning This patch is fixing a NULL pointer dereference to get a recently introduced warning message working. The Linux kernel CVE team has assigned CVE-2022-48741 to this issue. Affected and fixed versions =========================== Issue introduced in 5.15.3 with commit 5cffa333a2b2 and fixed in 5.15.20 with commit e6b678c1a367 Issue introduced in 5.16 with commit 5b0a414d06c3 and fixed in 5.16.6 with commit 9c7f8a35c5a8 Issue introduced in 5.16 with commit 5b0a414d06c3 and fixed in 5.17 with commit 4ee7e4a6c9b2 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-2022-48741 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: fs/overlayfs/copy_up.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/e6b678c1a3673de6a5d2f4e22bb725a086a0701a https://git.kernel.org/stable/c/9c7f8a35c5a83740c0e3ea540b6ad145c50d79aa https://git.kernel.org/stable/c/4ee7e4a6c9b298da44029ed9ec8ed23ae49cc209 References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-48741 https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-48741.mbox https://git.kernel.org/stable/c/e6b678c1a3673de6a5d2f4e22bb725a086a0701a https://git.kernel.org/stable/c/9c7f8a35c5a83740c0e3ea540b6ad145c50d79aa https://git.kernel.org/stable/c/4ee7e4a6c9b298da44029ed9ec8ed23ae49cc209
All done, closing.