# CVE-2023-53091: linux: In the Linux kernel, the following vulnerability has been resolved: ext4: update s_journal_inum if it changes after... CVE-2023-53091 is fixed in 20 products on 1 platform, first by ALAS2023-2023-148, released March 30, 2023. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2023-53091 - Priority: Routine - CVSS: 5.5 (medium) - EPSS: 0.0022 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Mar 30, 2023 ## Description In the Linux kernel, the following vulnerability has been resolved: ext4: update s_journal_inum if it changes after journal replay When mounting a crafted ext4 image, s_journal_inum may change after journal replay, which is obviously unreasonable because we have successfully loaded and replayed the journal through the old s_journal_inum. And the new s_journal_inum bypasses some of the checks in ext4_get_journal(), which may trigger a null pointer dereference problem. So if s_journal_inum changes after the journal replay, we ignore the change, and rewrite the current journal_inum to the superblock. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | bpftool-debuginfo amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-debuginfo amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-devel amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-headers amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-libbpf amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-libbpf-devel amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-libbpf-static amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-livepatch-6.1.21-1.45 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-tools amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-tools-debuginfo amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | kernel-tools-devel amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | linux Debian 12.15 (bookworm) | 6.1.25-1 | [DEBIAN-CVE-2023-53091](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53091.md) | May 2, 2025 | | Linux | linux Debian 13.5 (trixie) | 6.1.25-1 | [DEBIAN-CVE-2023-53091](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53091.md) | May 2, 2025 | | Linux | linux Debian 14 | 6.1.25-1 | [DEBIAN-CVE-2023-53091](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53091.md) | May 2, 2025 | | Linux | perf amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | perf-debuginfo amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | python3-perf amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | | Linux | python3-perf-debuginfo amzn 2023 | 6.1.21-1.45.amzn2023 | [ALAS2023-2023-148](https://patchblox.com/security/data/fix/linux/alas2023-2023-148.md) | Mar 30, 2023 | --- Data as of 2026-11-09T13:31:49Z UTC. 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