{"id":"CVE-2023-53457","summary":"FS: JFS: Fix null-ptr-deref Read in txBegin","details":"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.","modified":"2026-04-11T12:46:47.722480Z","published":"2025-10-01T11:42:28.730Z","related":["SUSE-SU-2025:03600-1","SUSE-SU-2025:03615-1","SUSE-SU-2025:03628-1","SUSE-SU-2025:03634-1","SUSE-SU-2025:20851-1","SUSE-SU-2025:20861-1","SUSE-SU-2025:20870-1","SUSE-SU-2025:20898-1","SUSE-SU-2025:3716-1","SUSE-SU-2025:3751-1","SUSE-SU-2025:3761-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4141-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53457.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1b4c144767736221cad92c132f72b3c6ed06a0ea"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3e94d0d378d2754b26fc54b429582553f7b53e15"},{"type":"WEB","url":"https://git.kernel.org/stable/c/47cfdc338d674d38f4b2f22b7612cc6a2763ba27"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a7225e9e09519deb7e0c42eb6070029cc456e84d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fd2db13fb72ff18c633a48229589d42ceb89d1f8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53457.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53457"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"},{"fixed":"a7225e9e09519deb7e0c42eb6070029cc456e84d"},{"fixed":"1b4c144767736221cad92c132f72b3c6ed06a0ea"},{"fixed":"a7d17d6bd7cd4f6940b335ea7a6fce5b6d22adc2"},{"fixed":"2a3f20efe6c901d4c0871cfd1d8c65e2ade71fc1"},{"fixed":"3e94d0d378d2754b26fc54b429582553f7b53e15"},{"fixed":"3e5eb6c5ecd8ddb9cfea751cf30f9e23eac97ca3"},{"fixed":"fd2db13fb72ff18c633a48229589d42ceb89d1f8"},{"fixed":"47cfdc338d674d38f4b2f22b7612cc6a2763ba27"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53457.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.12"},{"fixed":"4.14.324"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"4.19.293"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.20.0"},{"fixed":"5.4.255"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.192"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.123"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.42"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.4.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53457.json"}}],"schema_version":"1.7.5"}