# CVE-2026-23249: linux: In the Linux kernel, the following vulnerability has been resolved:  xfs: check for deleted cursors when revalidating...

CVE-2026-23249 is fixed in 80 products on 1 platform, first by DEBIAN-CVE-2026-23249, released March 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-23249
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0015
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 18, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  xfs: check for deleted cursors when revalidating two btrees  The free space and inode btree repair functions will rebuild both btrees at the same time, after which it needs to evaluate both btrees to confirm that the corruptions are gone.  However, Jiaming Zhang ran syzbot and produced a crash in the second xchk_allocbt call.  His root-cause analysis is as follows (with minor corrections):   In xrep_revalidate_allocbt(), xchk_allocbt() is called twice (first  for BNOBT, second for CNTBT). The cause of this issue is that the  first call nullified the cursor required by the second call.   Let's first enter xrep_revalidate_allocbt() via following call chain:   xfs_file_ioctl() ->  xfs_ioc_scrubv_metadata() ->  xfs_scrub_metadata() ->  `sc->ops->repair_eval(sc)` ->  xrep_revalidate_allocbt()   xchk_allocbt() is called twice in this function. In the first call:   /* Note that sc->sm->sm_type is XFS_SCRUB_TYPE_BNOPT now */  xchk_allocbt() ->  xchk_btree() ->  `bs->scrub_rec(bs, recp)` ->  xchk_allocbt_rec() ->  xchk_allocbt_xref() ->  xchk_allocbt_xref_other()   since sm_type is XFS_SCRUB_TYPE_BNOBT, pur is set to &sc->sa.cnt_cur.  Kernel called xfs_alloc_get_rec() and returned -EFSCORRUPTED. Call  chain:   xfs_alloc_get_rec() ->  xfs_btree_get_rec() ->  xfs_btree_check_block() ->  (XFS_IS_CORRUPT || XFS_TEST_ERROR), the former is false and the latter  is true, return -EFSCORRUPTED. This should be caused by  ioctl$XFS_IOC_ERROR_INJECTION I guess.   Back to xchk_allocbt_xref_other(), after receiving -EFSCORRUPTED from  xfs_alloc_get_rec(), kernel called xchk_should_check_xref(). In this  function, *curpp (points to sc->sa.cnt_cur) is nullified.   Back to xrep_revalidate_allocbt(), since sc->sa.cnt_cur has been  nullified, it then triggered null-ptr-deref via xchk_allocbt() (second  call) -> xchk_btree().  So.  The bnobt revalidation failed on a cross-reference attempt, so we deleted the cntbt cursor, and then crashed when we tried to revalidate the cntbt.  Therefore, check for a null cntbt cursor before that revalidation, and mark the repair incomplete.  Also we can ignore the second tree entirely if the first tree was rebuilt but is already corrupt.  Apply the same fix to xrep_revalidate_iallocbt because it has the same problem.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | bpftool6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | bpftool6.18 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | bpftool6.18-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel-livepatch-6.12.77-99.140 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel-livepatch-6.18.16-18.222 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel-uek ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-core ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-core ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-core ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-core ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-devel ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-devel ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-core ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-core ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-deprecated ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-deprecated ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-desktop ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-desktop ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-extra ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-extra ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-extra-netfilter ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-extra-netfilter ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-usb ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-usb ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-wireless ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-debug-modules-wireless ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-devel ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-devel ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-doc ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-doc ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-core ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-core ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-deprecated ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-deprecated ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-desktop ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-desktop ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-extra ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-extra ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-extra-netfilter ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-extra-netfilter ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-usb ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-usb ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-wireless ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-modules-wireless ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-tools ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek-tools ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-core ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-core ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-devel ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-devel ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-core ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-core ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-deprecated ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-deprecated ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-desktop ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-desktop ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-extra ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-extra ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-extra-netfilter ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-extra-netfilter ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-usb ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-usb ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-wireless ol 10 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel-uek64k-modules-wireless ol 9 | 0:6.12.0-202.76.4.1.el9uek | [ELSA-2026-50260](https://patchblox.com/security/data/fix/linux/elsa-2026-50260.md) | May 10, 2026 |
| Linux | kernel6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-debuginfo-common-aarch64 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-debuginfo-common-x86_64 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-devel amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-headers amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf-devel amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf-static amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-modules-extra amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-modules-extra-common amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-tools amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-tools-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-tools-devel amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.18 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-debuginfo-common-aarch64 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-debuginfo-common-x86_64 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-devel amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-headers amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-libbpf amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-libbpf-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-libbpf-devel amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-libbpf-static amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-modules-extra amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-modules-extra-common amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-tools amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-tools-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-tools-devel amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | linux Debian 13.5 (trixie) | 6.12.85-1 | [DEBIAN-CVE-2026-23249](https://patchblox.com/security/data/fix/linux/debian-cve-2026-23249.md) | Mar 18, 2026 |
| Linux | linux Debian 14 | 6.19.6-1 | [DEBIAN-CVE-2026-23249](https://patchblox.com/security/data/fix/linux/debian-cve-2026-23249.md) | Mar 18, 2026 |
| Linux | perf6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | perf6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | perf6.18 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | perf6.18-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | python3-perf6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | python3-perf6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | python3-perf6.18 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | python3-perf6.18-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |

---

Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

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