# CVE-2024-26972: linux: In the Linux kernel, the following vulnerability has been resolved: ubifs: ubifs_symlink: Fix memleak of inode->i_li... CVE-2024-26972 is fixed in 43 products on 1 platform, first by ALAS2023-2024-517, released February 15, 2024. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2024-26972 - Priority: High - CVSS: n/a (important) - EPSS: n/a - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Feb 15, 2024 ## Description In the Linux kernel, the following vulnerability has been resolved: ubifs: ubifs_symlink: Fix memleak of inode->i_link in error path For error handling path in ubifs_symlink(), inode will be marked as bad first, then iput() is invoked. If inode->i_link is initialized by fscrypt_encrypt_symlink() in encryption scenario, inode->i_link won't be freed by callchain ubifs_free_inode -> fscrypt_free_inode in error handling path, because make_bad_inode() has changed 'inode->i_mode' as 'S_IFREG'. Following kmemleak is easy to be reproduced by injecting error in ubifs_jnl_update() when doing symlink in encryption scenario: unreferenced object 0xffff888103da3d98 (size 8): comm "ln", pid 1692, jiffies 4294914701 (age 12.045s) backtrace: kmemdup+0x32/0x70 __fscrypt_encrypt_symlink+0xed/0x1c0 ubifs_symlink+0x210/0x300 [ubifs] vfs_symlink+0x216/0x360 do_symlinkat+0x11a/0x190 do_syscall_64+0x3b/0xe0 There are two ways fixing it: 1. Remove make_bad_inode() in error handling path. We can do that because ubifs_evict_inode() will do same processes for good symlink inode and bad symlink inode, for inode->i_nlink checking is before is_bad_inode(). 2. Free inode->i_link before marking inode bad. Method 2 is picked, it has less influence, personally, I think. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | bpftool-debuginfo amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | dtb-aarch64 opensuse-leap 15.6 | 6.4.0-150600.23.7.1 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-64kb opensuse-leap 15.6 | 6.4.0-150600.23.7.3 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-64kb sles 15.6 | 6.4.0-150600.23.7.3 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-azure opensuse-leap 15.6 | 6.4.0-150600.8.5.4 | [SUSE-SU-2024:2135-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2135-1.md) | Jun 21, 2024 | | Linux | kernel-azure sles 15.6 | 6.4.0-150600.8.5.4 | [SUSE-SU-2024:2135-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2135-1.md) | Jun 21, 2024 | | Linux | kernel-debug opensuse-leap 15.6 | 6.4.0-150600.23.7.3 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-debuginfo amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-default opensuse-leap 15.6 | 6.4.0-150600.23.7.3 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-default sles 15.6 | 6.4.0-150600.23.7.3 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-default-base opensuse-leap 15.6 | 6.4.0-150600.23.7.3.150600.12.2.7 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-default-base sles 15.6 | 6.4.0-150600.23.7.3.150600.12.2.7 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-devel amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-docs opensuse-leap 15.6 | 6.4.0-150600.23.7.4 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-docs sles 15.6 | 6.4.0-150600.23.7.4 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-headers amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-kvmsmall opensuse-leap 15.6 | 6.4.0-150600.23.7.3 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-libbpf amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-libbpf-devel amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-libbpf-static amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-livepatch-6.1.77-99.164 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-livepatch-SLE15-SP6-RT_Update_1 sles 15.6 | 1-150600.1.5.1 | [SUSE-SU-2024:2973-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2973-1.md) | Aug 20, 2024 | | Linux | kernel-livepatch-SLE15-SP6_Update_1 sles 15.6 | 1-150600.13.3.7 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-modules-extra amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-modules-extra-common amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-obs-build opensuse-leap 15.6 | 6.4.0-150600.23.7.3 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-obs-build sles 15.6 | 6.4.0-150600.23.7.3 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-obs-qa opensuse-leap 15.6 | 6.4.0-150600.23.7.1 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-rt opensuse-leap 15.6 | 6.4.0-150600.10.5.1 | [SUSE-SU-2024:2973-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2973-1.md) | Aug 20, 2024 | | Linux | kernel-rt_debug opensuse-leap 15.6 | 6.4.0-150600.10.5.1 | [SUSE-SU-2024:2973-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2973-1.md) | Aug 20, 2024 | | Linux | kernel-source opensuse-leap 15.6 | 6.4.0-150600.23.7.2 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-source sles 15.6 | 6.4.0-150600.23.7.2 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-source-azure opensuse-leap 15.6 | 6.4.0-150600.8.5.4 | [SUSE-SU-2024:2135-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2135-1.md) | Jun 21, 2024 | | Linux | kernel-source-azure sles 15.6 | 6.4.0-150600.8.5.4 | [SUSE-SU-2024:2135-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2135-1.md) | Jun 21, 2024 | | Linux | kernel-source-rt opensuse-leap 15.6 | 6.4.0-150600.10.5.1 | [SUSE-SU-2024:2973-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2973-1.md) | Aug 20, 2024 | | Linux | kernel-syms opensuse-leap 15.6 | 6.4.0-150600.23.7.1 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-syms sles 15.6 | 6.4.0-150600.23.7.1 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-syms-azure opensuse-leap 15.6 | 6.4.0-150600.8.5.1 | [SUSE-SU-2024:2135-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2135-1.md) | Jun 21, 2024 | | Linux | kernel-syms-azure sles 15.6 | 6.4.0-150600.8.5.1 | [SUSE-SU-2024:2135-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2135-1.md) | Jun 21, 2024 | | Linux | kernel-syms-rt opensuse-leap 15.6 | 6.4.0-150600.10.5.1 | [SUSE-SU-2024:2973-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2973-1.md) | Aug 20, 2024 | | Linux | kernel-tools amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-tools-debuginfo amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-tools-devel amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | kernel-zfcpdump opensuse-leap 15.6 | 6.4.0-150600.23.7.3 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | kernel-zfcpdump sles 15.6 | 6.4.0-150600.23.7.3 | [SUSE-SU-2024:2203-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-2203-1.md) | Jun 25, 2024 | | Linux | linux Debian 13.5 (trixie) | 6.8.9-1 | [CVE-2024-26972](https://patchblox.com/security/data/fix/linux/cve-2024-26972.md) | May 1, 2024 | | Linux | perf amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | perf-debuginfo amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | python3-perf amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | | Linux | python3-perf-debuginfo amzn 2023 | 6.1.77-99.164.amzn2023 | [ALAS2023-2024-517](https://patchblox.com/security/data/fix/linux/alas2023-2024-517.md) | Feb 15, 2024 | --- Data as of 2026-11-08T13:06:02Z UTC. 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