CVE-2026-31455

HighCVSS 7.8/10Last modified Nov 11, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

xfs: stop reclaim before pushing AIL during unmount

The unmount sequence in xfs_unmount_flush_inodes() pushed the AIL while background reclaim and inodegc are still running. This is broken independently of any use-after-free issues - background reclaim and inodegc should not be running while the AIL is being pushed during unmount, as inodegc can dirty and insert inodes into the AIL during the flush, and background reclaim can race to abort and free dirty inodes.

Reorder xfs_unmount_flush_inodes() to stop inodegc and cancel background reclaim before pushing the AIL. Stop inodegc before cancelling m_reclaim_work because the inodegc worker can re-queue m_reclaim_work via xfs_inodegc_set_reclaimable.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 90c60e16401248a4900f3f9387f563d0178dcf34, < e6cc490048f78b009259a5f032acead9f789c34c; >= 90c60e16401248a4900f3f9387f563d0178dcf34, < 239d734c00644072862fa833805c4471573b1445; >= 90c60e16401248a4900f3f9387f563d0178dcf34, < bda27fc0b4eb3a425d9a18475c4cb94fbe862c60; >= 90c60e16401248a4900f3f9387f563d0178dcf34, < d38135af04a3ad8a585c899d176efc8e97853115; >= 90c60e16401248a4900f3f9387f563d0178dcf34, < a89434a6188d8430ea31120da96e3e4cefb58686; >= 90c60e16401248a4900f3f9387f563d0178dcf34, < 8147e304d7d32fd5c3e943babc296ce2873dc279; >= 90c60e16401248a4900f3f9387f563d0178dcf34, < 558e3275d8a3b101be18a7fe7d1634053e9d9b07; >= 90c60e16401248a4900f3f9387f563d0178dcf34, < 4f24a767e3d64a5f58c595b5c29b6063a201f1e3
LinuxLinux5.9

References

Timeline

Published
Apr 22, 2026
Last modified
Nov 11, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-314564.7In the Linux kernel, the following vulnerability has been resolved: mm/pagewalk: fix race between concurrent split and refault The splittiCVE-2026-314575.5In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: check contexts->nr in repeat_call_fn damon_sysfs_repeaCVE-2026-314585.5In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: check contexts->nr before accessing contexts_arr[0] MuCVE-2026-314595.5In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failurCVE-2026-31465.5A vulnerability has been found in libvips up to 8.18.0. The impacted element is the function vips_foreign_load_matrix_header of the file libCVE-2026-314605.5In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: check if ext_caps is valid in BL setup LVDS connectorCVE-2026-314615.5In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix drm_edid leak in amdgpu_dm [WHAT] When a sink is CVE-2026-314625.5In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: prevent immediate PASID reuse case PASID resue could causeCVE-2026-314639.8In the Linux kernel, the following vulnerability has been resolved: iomap: fix invalid folio access when i_blkbits differs from I/O granulaCVE-2026-314648.1In the Linux kernel, the following vulnerability has been resolved: scsi: ibmvfc: Fix OOB access in ibmvfc_discover_targets_done() A malicCVE-2026-314655.5In the Linux kernel, the following vulnerability has been resolved: writeback: don't block sync for filesystems with no data integrity guarCVE-2026-314664.7In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: fix folio isn't locked in softleaf_to_folio() On arm64
CVE-2026-31455: High severity, CVSS 7.8 | Vulnix