CVE-2022-49980: USB: gadget: Fix use-after-free Read in usb_udc_uevent()

Affected versions

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

• linux linux kernelbefore 5.19.7

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

  • 3.1affected
  • 2ccea03a8f7ec93641791f2760d7cdc6cab6205f and later · before f44b0b95d50fffeca036e1ba36770390e0b519ddaffected · git
  • 2ccea03a8f7ec93641791f2760d7cdc6cab6205f and later · before 2191c00855b03aa59c20e698be713d952d51fc18affected · git
  • before 3.1not affected · semver
  • 5.19.7 and later · up to and including 5.19.*not affected · semver
  • 6.0 and laternot affected · original_commit_for_fix

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-2022-49977Jun 18, 2025 · ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead
  22Monitor
• ← EarlierCVE-2022-49978Jun 18, 2025 · fbdev: fb_pm2fb: Avoid potential divide by zero error
  22Monitor
• Later →CVE-2022-49981Jun 18, 2025 · HID: hidraw: fix memory leak in hidraw_release()
  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.