CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto

Affected versions

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

• debian debian linux11.0
• linux linux kernel5.15.181 and later · before 5.15.190
• linux linux kernel6.1.128 and later · before 6.1.147
• linux linux kernel6.6.57 and later · before 6.6.100
• linux linux kernel5.10.237 and later · before 5.10.241
• linux linux kernel6.13 and later · before 6.15.8
• linux linux kernel6.11.4 and later · before 6.12.40
• linux linux kernel6.16

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

  • 538c26d9bf70c90edc460d18c81008a4e555925a, 6.12affected
  • 8f14a476abba13144df5434871a7225fd29af633 and later · before 5d047b12f86cc3b9fde1171c02d9bccf4dba0632affected · git
  • ef51c0d544b1518b35364480317ab6d3468f205d and later · before 6550b2bef095d0dd2d2c8390d2ea4c3837028833affected · git
  • bce966530fd5542bbb422cb45ecb775f7a1a6bc3 and later · before 9a1d3e8d40f151c2d5a5f40c410e6e433f62f438affected · git
  • 0809fb86ad13b29e1d6d491364fc7ea4fb545995 and later · before 15a0a5de49507062bc3be4014a403d8cea5533deaffected · git
  • b0abcd65ec545701b8793e12bc27dc98042b151a and later · before 2a76bc2b24ed889a689fb1c9015307bf16aafb5baffected · git
  • b0abcd65ec545701b8793e12bc27dc98042b151a and later · before 8ac90f6824fc44d2e55a82503ddfc95defb19ae0affected · git
  • b0abcd65ec545701b8793e12bc27dc98042b151a and later · before b220bed63330c0e1733dc06ea8e75d5b9962b6b6affected · git
  • 5.10.237 and later · before 5.10.241affected · semver
  • 5.15.181 and later · before 5.15.190affected · 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-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
• CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
  83Now

Published before and after this one in the same product

• ← EarlierCVE-2025-38486Jul 28, 2025 · soundwire: Revert "soundwire: qcom: Add set_channel_map api support"
  22Monitor
• ← EarlierCVE-2025-38487Jul 28, 2025 · soc: aspeed: lpc-snoop: Don't disable channels that aren't enabled
  22Monitor
• Later →CVE-2025-38489Jul 28, 2025 · s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again
  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.