Input: synaptics-rmi4 - fix use after free in rmi_unregister_function()

Affected versions

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

• linux linux kernel4.18 and later · before 4.19.299
• linux linux kernel4.20 and later · before 5.4.261
• linux linux kernel5.5 and later · before 5.10.201
• linux linux kernel5.11 and later · before 5.15.139
• linux linux kernel5.16 and later · before 6.1.63
• linux linux kernel6.2 and later · before 6.5.12
• linux linux kernel6.6 and later · before 6.6.2

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

  • 4.18affected
  • 24d28e4f1271cb2f91613dada8f2acccd00eff56 and later · before 2f236d8638f5b43e0c72919a6a27fe286c32053faffected · git
  • 24d28e4f1271cb2f91613dada8f2acccd00eff56 and later · before 50d12253666195a14c6cd2b81c376e2dbeedbdffaffected · git
  • 24d28e4f1271cb2f91613dada8f2acccd00eff56 and later · before 6c71e065befb2fae8f1461559b940c04e1071bd5affected · git
  • 24d28e4f1271cb2f91613dada8f2acccd00eff56 and later · before 303766bb92c5c225cf40f9bbbe7e29749406e2f2affected · git
  • 24d28e4f1271cb2f91613dada8f2acccd00eff56 and later · before 7082b1fb5321037bc11ba1cf2d7ed23c6b2b521faffected · git
  • 24d28e4f1271cb2f91613dada8f2acccd00eff56 and later · before cc56c4d17721dcb10ad4e9c9266e449be1462683affected · git
  • 24d28e4f1271cb2f91613dada8f2acccd00eff56 and later · before c8e639f5743cf4b01f8c65e0df075fe4d782b585affected · git
  • 24d28e4f1271cb2f91613dada8f2acccd00eff56 and later · before eb988e46da2e4eae89f5337e047ce372fe33d5b1affected · git
  • before 4.18not 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.