bus: fsl-mc: fix use-after-free in driver_override_show()

Affected versions

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

• linux linux kernel5.10 and later · before 5.15.201
• linux linux kernel5.16 and later · before 6.1.164
• linux linux kernel6.2 and later · before 6.6.127
• linux linux kernel6.7 and later · before 6.12.74
• linux linux kernel6.13 and later · before 6.18.11
• linux linux kernel6.19 and later · before 6.19.1

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

  • 5.10affected
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d and later · before c71dfb7833db7af652ee8f65011f14c97c47405daffected · git
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d and later · before c424e72cfa67e7e1477035058a8a659f2c0ea637affected · git
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d and later · before b1983840287303e0dfb401b1b6cecc5ea7471e90affected · git
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d and later · before dd8ba8c0c3f3916d4ee1e3a09da9cd5caff5d227affected · git
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d and later · before 1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0affected · git
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d and later · before a2ae33e1c6361e960a4d00f7cf75d880b54f9528affected · git
  • 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d and later · before 148891e95014b5dc5878acefa57f1940c281c431affected · git
  • before 5.10not affected · semver
  • 5.15.201 and later · up to and including 5.15.*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-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.