CVE-2026-46274: io-wq: check that the predecessor is hashed in io_wq_remove_pending()

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• linux linux kernel5.8.6 and later · before 5.9
• linux linux kernel5.9.1 and later · before 6.6.141
• linux linux kernel6.7 and later · before 6.12.91
• linux linux kernel6.13 and later · before 6.18.33
• linux linux kernel6.19 and later · before 7.0.10
• linux linux kernel5.9
• linux linux kernel7.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

• Linux Linux

  • 13f35a2c0fd5c6a4fcd8903542b053bcc914fcf5, 5.9affected
  • 204361a77f4018627addd4a06877448f088ddfc0 and later · before d6bda9df0c0a3080804181464d5c0f4d78a4e769affected · git
  • 204361a77f4018627addd4a06877448f088ddfc0 and later · before 5a20ebf0c81b61f5ea3b1b529c100cad69b9f603affected · git
  • 204361a77f4018627addd4a06877448f088ddfc0 and later · before 252c5051dba9c709b6a72f2866f93e5e618b3f06affected · git
  • 204361a77f4018627addd4a06877448f088ddfc0 and later · before d376c131af7c7739a87ff037ed2fdb67c2542c8aaffected · git
  • 204361a77f4018627addd4a06877448f088ddfc0 and later · before d6a2d7b04b5a093021a7a0e2e69e9d5237dfa8ccaffected · git
  • 5.8.6 and later · before 5.9affected · semver
  • before 5.9not affected · semver
  • 6.6.141 and later · up to and including 6.6.*not affected · semver
  • 6.12.91 and later · up to and including 6.12.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
  90Now
• CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
  89Now
• CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
  85Now

Published before and after this one in the same product

• ← EarlierCVE-2026-46272Jun 3, 2026 · coresight: tmc-etr: Fix race condition between sysfs and perf mode
  18Monitor
• ← EarlierCVE-2025-71315Jun 8, 2026 · drm/vkms: Convert to DRM's vblank timer
  22Monitor
• Later →CVE-2026-46276Jun 8, 2026 · drm/amdgpu: fix zero-size GDS range init on RDNA4
  22Monitor

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1free(dev->buf);2/* ... another thread is still running ... */3process(dev->buf);

1lock(&dev->lock);2free(dev->buf);3dev->buf = NULL;4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.