{"id":"CVE-2023-53457","state":"PUBLISHED","title":"FS: JFS: Fix null-ptr-deref Read in txBegin","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nFS: JFS: Fix null-ptr-deref Read in txBegin\n\n Syzkaller reported an issue where txBegin may be called\n on a superblock in a read-only mounted filesystem which leads\n to NULL pointer deref. This could be solved by checking if\n the filesystem is read-only before calling txBegin, and returning\n with appropiate error code.","publishedAt":"2025-10-01T11:42:28.730Z","updatedAt":"2026-05-11T19:45:22.673Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"a7225e9e09519deb7e0c42eb6070029cc456e84d","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"1b4c144767736221cad92c132f72b3c6ed06a0ea","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"3e94d0d378d2754b26fc54b429582553f7b53e15","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"fd2db13fb72ff18c633a48229589d42ceb89d1f8","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"47cfdc338d674d38f4b2f22b7612cc6a2763ba27","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/jfs/namei.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"4.14.324","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.293","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.255","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.192","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.123","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.42","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.7","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/jfs/namei.c"]}],"references":["https://git.kernel.org/stable/c/a7225e9e09519deb7e0c42eb6070029cc456e84d","https://git.kernel.org/stable/c/1b4c144767736221cad92c132f72b3c6ed06a0ea","https://git.kernel.org/stable/c/a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2","https://git.kernel.org/stable/c/2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1","https://git.kernel.org/stable/c/3e94d0d378d2754b26fc54b429582553f7b53e15","https://git.kernel.org/stable/c/3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3","https://git.kernel.org/stable/c/fd2db13fb72ff18c633a48229589d42ceb89d1f8","https://git.kernel.org/stable/c/47cfdc338d674d38f4b2f22b7612cc6a2763ba27"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53457.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53457","state":"PUBLISHED","datePublished":"2025-10-01T11:42:28.730Z","dateUpdated":"2026-05-11T19:45:22.673Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-17T14:54:09.755Z"},"containers":{"cna":{"title":"FS: JFS: Fix null-ptr-deref Read in txBegin","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nFS: JFS: Fix null-ptr-deref Read in txBegin\n\n Syzkaller reported an issue where txBegin may be called\n on a superblock in a read-only mounted filesystem which leads\n to NULL pointer deref. This could be solved by checking if\n the filesystem is read-only before calling txBegin, and returning\n with appropiate error code."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"a7225e9e09519deb7e0c42eb6070029cc456e84d","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"1b4c144767736221cad92c132f72b3c6ed06a0ea","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"3e94d0d378d2754b26fc54b429582553f7b53e15","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"fd2db13fb72ff18c633a48229589d42ceb89d1f8","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"47cfdc338d674d38f4b2f22b7612cc6a2763ba27","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/jfs/namei.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"4.14.324","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.293","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.255","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.192","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.123","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.42","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.4.7","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/jfs/namei.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a7225e9e09519deb7e0c42eb6070029cc456e84d"},{"url":"https://git.kernel.org/stable/c/1b4c144767736221cad92c132f72b3c6ed06a0ea"},{"url":"https://git.kernel.org/stable/c/a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2"},{"url":"https://git.kernel.org/stable/c/2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1"},{"url":"https://git.kernel.org/stable/c/3e94d0d378d2754b26fc54b429582553f7b53e15"},{"url":"https://git.kernel.org/stable/c/3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3"},{"url":"https://git.kernel.org/stable/c/fd2db13fb72ff18c633a48229589d42ceb89d1f8"},{"url":"https://git.kernel.org/stable/c/47cfdc338d674d38f4b2f22b7612cc6a2763ba27"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:45:22.673Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"4.14.324"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"4.19.293"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.4.255"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.10.192"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.15.123"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.1.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.4.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.5"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}