CVE-2022-49696: tipc: fix use-after-free Read in tipc_named_reinit

Affected versions

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

• linux linux kernel5.4.83 and later · before 5.5
• linux linux kernel5.9.14 and later · before 5.10.127
• linux linux kernel5.11 and later · before 5.15.51
• linux linux kernel5.16 and later · before 5.18.8
• linux linux kernel5.19

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

  • fdc1416c21992ea7b4737123c8aa8c7424a1a540, 1716c9bd567bc6cdb3d18be78f36941a306b708d, 5.10affected
  • d966ddcc38217a6110a6a0ff37ad2dee7d42e23e and later · before 361c5521c1e49843b710f455cae3c0a50b714323affected · git
  • d966ddcc38217a6110a6a0ff37ad2dee7d42e23e and later · before cd7789e659e84f137631dc1f5ec8d794f2700e6caffected · git
  • d966ddcc38217a6110a6a0ff37ad2dee7d42e23e and later · before 8b246ddd394d7d9640816611693b0096b998e27aaffected · git
  • d966ddcc38217a6110a6a0ff37ad2dee7d42e23e and later · before 911600bf5a5e84bfda4d33ee32acc75ecf6159f0affected · git
  • 5.4.83 and later · before 5.5affected · semver
  • 5.9.14 and later · before 5.10affected · semver
  • before 5.10not affected · semver
  • 5.10.127 and later · up to and including 5.10.*not affected · semver
  • 5.15.51 and later · up to and including 5.15.*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-2022-49694Feb 26, 2025 · block: disable the elevator int del_gendisk
  31Monitor
• ← EarlierCVE-2022-49695Feb 26, 2025 · igb: fix a use-after-free issue in igb_clean_tx_ring
  31Monitor
• Later →CVE-2022-49697Feb 26, 2025 · bpf: Fix request_sock leak in sk lookup helpers
  22Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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.