ALSA: hda/cs35l41: Fix firmware load work teardown

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

  • 6.0affected
  • 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 and later · before 3e339c88b8c3044919fd1936a8b23124285d0de6affected · git
  • 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 and later · before 8947215c0136c9d905e4a46d824824f8b48a2e5baffected · git
  • 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 and later · before ce0a903d0591e3e2c790c5b628802b08d1b287ccaffected · git
  • 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 and later · before d6a40a4d083ef74d00c8f9516cb5ff07ac70720baffected · git
  • 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 and later · before b65020d5398f499c09498c9786dba6d67ae57664affected · git
  • before 6.0not affected · semver
  • 6.6.160 and later · up to and including 6.6.*not affected · semver
  • 6.12.97 and later · up to and including 6.12.*not affected · semver
  • 6.18.39 and later · up to and including 6.18.*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-2026-74705udp: fix potential use-after-free in tunnel segmentation
  40Plan
• CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
  40Plan
• CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
  40Plan

Published before and after this one in the same product

• ← EarlierCVE-2026-64463Jul 25, 2026 · usb: typec: tcpci_rt1711h: unregister TCPCI port with devres
  31Monitor
• ← EarlierCVE-2026-64475Jul 25, 2026 · vfio/pci: Release the VGA arbiter client on register_device() failure
  35Monitor
• Later →CVE-2026-64485Jul 25, 2026 · ALSA: compress: Fix task creation error unwind
  31Monitor

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.