CVE-2026-46004: ALSA: caiaq: Handle probe errors properly

Affected versions

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

• linux linux kernel2.6.25 and later · before 5.10.258
• linux linux kernel5.11 and later · before 5.15.209
• linux linux kernel5.16 and later · before 6.1.175
• linux linux kernel6.2 and later · before 6.6.140
• linux linux kernel6.7 and later · before 6.12.86
• linux linux kernel6.13 and later · before 6.18.27
• linux linux kernel6.19 and later · before 7.0.4

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

  • 2.6.25affected
  • 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 and later · before da938aa9fc7826901921dcea225948ab21a97e45affected · git
  • 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 and later · before 09616e25f502080ba684fc7fcf959d1376ab756daffected · git
  • 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 and later · before b956e48371f2ff72b76be9a829800ecec963bd45affected · git
  • 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 and later · before f537e3ad69609f6924a4db6b4a7f6561f5288bddaffected · git
  • 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 and later · before 6251e3e256337a30160ef59ab1580dde4d1acd28affected · git
  • 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 and later · before e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056affected · git
  • 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 and later · before 096dd8519cf2f768e9e14f224b627f7aaee1a9c5affected · git
  • 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 and later · before 28abd224db4a49560b452115bca3672a20e45b2faffected · git
  • before 2.6.25not 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-2026-46001May 27, 2026 · hwmon: (pt5161l) Fix bugs in pt5161l_read_block_data()
  31Monitor
• ← EarlierCVE-2026-46002May 27, 2026 · ext2: reject inodes with zero i_nlink and valid mode in ext2_iget()
  22Monitor
• Later →CVE-2026-46005May 27, 2026 · xfs: fix a resource leak in xfs_alloc_buftarg()
  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.