iommu/mediatek: fix use-after-free on probe deferral

Affected versions

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

• linux linux kernel6.7 and later · before 6.12.64
• linux linux kernel6.1.2 and later · before 6.1.160
• linux linux kernel6.2.1 and later · before 6.6.120
• linux linux kernel6.0.16 and later · before 6.1
• linux linux kernel6.13 and later · before 6.18.3
• linux linux kernel6.19
• linux linux kernel6.2

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

  • 51080de72e26771f0ed9d44982974279ccbc92b8, 6.2affected
  • 8412e5dd24ffc8bc21a00bfaa0b80d4596cdc9da and later · before 896ec55da3b90bdb9fc04fedc17ad8c359b2eee5affected · git
  • 26593928564cf5b576ff05d3cbd958f57c9534bb and later · before 5c04217d06a1161aaf36267e9d971ab6f847d5a7affected · git
  • 26593928564cf5b576ff05d3cbd958f57c9534bb and later · before 1ef70a0b104ae8011811f60bcfaa55ff49385171affected · git
  • 26593928564cf5b576ff05d3cbd958f57c9534bb and later · before f6c08d3aa441bbc1956e9d65f1cbb89113a5aa8aaffected · git
  • 26593928564cf5b576ff05d3cbd958f57c9534bb and later · before de83d4617f9fe059623e97acf7e1e10d209625b5affected · git
  • 6.1.2 and later · before 6.1.160affected · semver
  • 6.0.16 and later · before 6.1affected · semver
  • before 6.2not affected · semver
  • 6.1.160 and later · up to and including 6.1.*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.