usb: vhci-hcd: Do not drop references before new references are gained

Affected versions

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

• linux linux kernelbefore 4.19.320
• linux linux kernel4.20 and later · before 5.4.282
• linux linux kernel5.5 and later · before 5.10.224
• linux linux kernel5.11 and later · before 5.15.165
• linux linux kernel5.16 and later · before 6.1.105
• linux linux kernel6.2 and later · before 6.6.46
• linux linux kernel6.7 and later · before 6.10.5
• linux linux kernel6.11

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

  • 96ea4801d2035f89fc4ec4a67f49a18c35cb6715, 075b4e6a982d38121250c090f7b9294314ac1b19, 436e52f1a628233f080605dd736594df250897ca, 1c8d316294916da7e2a2f1f178ca3f3bd6d7b531, 927c3fa44e24300eb827ab9f9dacce6dff9c9bb7, 2.6.38affected
  • 7606ee8aa33287dd3e6eb44c78541b87a413a325 and later · before 5a3c473b28ae1c1f7c4dc129e30cb19ae6e96f89affected · git
  • 7606ee8aa33287dd3e6eb44c78541b87a413a325 and later · before 9c3746ce8d8fcb3a2405644fc0eec7fc5312de80affected · git
  • 7606ee8aa33287dd3e6eb44c78541b87a413a325 and later · before 4dacdb9720aaab10b6be121eae55820174d97174affected · git
  • 7606ee8aa33287dd3e6eb44c78541b87a413a325 and later · before e8c1e606dab8c56cf074b43b98d0805de7322ba2affected · git
  • 7606ee8aa33287dd3e6eb44c78541b87a413a325 and later · before 585e6bc7d0a9bf73a8be3d3fb34e86b90cc61a14affected · git
  • 7606ee8aa33287dd3e6eb44c78541b87a413a325 and later · before 128e82e41cf7d74a562726c1587d9d2ede1a0a37affected · git
  • 7606ee8aa33287dd3e6eb44c78541b87a413a325 and later · before c3d0857b7fc2c49f68f89128a5440176089a8f54affected · git
  • 7606ee8aa33287dd3e6eb44c78541b87a413a325 and later · before afdcfd3d6fcdeca2735ca8d994c5f2d24a368f0aaffected · git
  • 2.6.32.30 and later · before 2.6.33affected · 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
• CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
  77This week
• CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
  77This week
• CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV
  77This week

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.