cpufreq: pcc: fix use-after-free and double free in _OSC evaluation

Affected versions

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

• linux linux kernel2.6.34 and later · before 5.10.261
• linux linux kernel5.11 and later · before 5.15.212
• linux linux kernel5.16 and later · before 6.1.178
• linux linux kernel6.2 and later · before 6.6.145
• linux linux kernel6.7 and later · before 6.12.96
• linux linux kernel6.13 and later · before 6.18.39
• linux linux kernel6.19 and later · before 7.1.4

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

  • 2.6.34affected
  • 0f1d683fb35d6c6f49ef696c95757f3970682a0e and later · before 8e454e9d0bc03446d610ee49abec9dfd424f6541affected · git
  • 0f1d683fb35d6c6f49ef696c95757f3970682a0e and later · before 632666a63116d8061c62a988d1ca39dcd6d27c9baffected · git
  • 0f1d683fb35d6c6f49ef696c95757f3970682a0e and later · before 5cdb25f144b101083d8bf3fd023ad87fbe6850d7affected · git
  • 0f1d683fb35d6c6f49ef696c95757f3970682a0e and later · before 982c9f92d57bda2b769851ff6d90d43dcf5f3734affected · git
  • 0f1d683fb35d6c6f49ef696c95757f3970682a0e and later · before a36ca93a8ba57464e521d70a337d37f069064111affected · git
  • 0f1d683fb35d6c6f49ef696c95757f3970682a0e and later · before 6ba6f6783be2ffeb2cbcdc9321c4b9f708f796f7affected · git
  • 0f1d683fb35d6c6f49ef696c95757f3970682a0e and later · before 0e3c739a2f6fc1de5b19a8839ab80696b9cb2a29affected · git
  • 0f1d683fb35d6c6f49ef696c95757f3970682a0e and later · before 266d3dd8b757b48a576e90f018b51f7b7563cc32affected · git
  • before 2.6.34not 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.