vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu()

Affected versions

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

• linux linux kernel5.9 and later · before 5.10.259
• linux linux kernel5.11 and later · before 5.15.210
• linux linux kernel5.16 and later · before 6.1.176
• linux linux kernel6.2 and later · before 6.6.143
• linux linux kernel6.7 and later · before 6.12.93
• linux linux kernel6.13 and later · before 6.18.35
• linux linux kernel6.19 and later · before 7.0.12
• linux linux kernel7.1

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

  • 5.9affected
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f and later · before 6b8bfce9d2f774d2c2243e0248e03efb99bba6c0affected · git
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f and later · before 9257f56ac47ef1976bcd056cf986a9988eeec67aaffected · git
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f and later · before 8d435d68d71fb875876b722f4136caf74f2f48bdaffected · git
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f and later · before dc3bfa050f873371e745bdf478b1f5b738e5733daffected · git
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f and later · before 609e63312c29aad18026a1d3222e123d4b6b0febaffected · git
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f and later · before 5303925e360527243b46a440a04667826bbc72b7affected · git
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f and later · before a493efd4336cf19122ae0e4cbb3d31b32d70deeaaffected · git
  • 4cb47a8644cc9eb8ec81190a50e79e6530d0297f and later · before 7d9ef0cb271555d8cf39fefe6c981e1493b25ecfaffected · git
  • before 5.9not 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.