CVE-2022-1055: Use after Free in tc_new_tfilter allowing for privilege escalation in Linux Kernel

Affected versions

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

• canonical ubuntu linux16.04
• canonical ubuntu linux18.04
• canonical ubuntu linux20.04
• canonical ubuntu linux21.10
• canonical ubuntu linux22.04
• fedoraproject fedora35
• linux linux kernel5.1 and later · before 5.4.177
• linux linux kernel5.5 and later · before 5.10.97
• linux linux kernel5.11 and later · before 5.15.20
• linux linux kernel5.16 and later · before 5.16.6
• netapp h300e firmwareall versions
• netapp h300s firmwareall versions
• netapp h410c firmwareall versions
• netapp h410s firmwareall versions
• netapp h500e firmwareall versions
• netapp h500s firmwareall versions
• netapp h700e firmwareall versions
• netapp h700s firmwareall versions
• redhat enterprise linux8.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Google). Independent of NVD's CPE analysis and usually ahead of it.

• Linux Kernel

  • 5.17.0, 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5not affected
  • 5.1.0 and later · before 5.4.177affected · semver
  • 5.5.0 and later · before 5.10.97affected · semver
  • 5.11.0 and later · before 5.15.20affected · semver
  • 5.16.0 and later · before 5.16.6affected · 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-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
  90Now
• 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

Published before and after this one in the same product

• ← EarlierCVE-2022-0500Mar 25, 2022 · A flaw was found in unrestricted eBPF usage by the BPF_BTF_LOAD, leading to a possible out-of-bounds memory write in the Linux kernel’s BPF
  31Monitor
• ← EarlierCVE-2022-27950Mar 28, 2022 · In drivers/hid/hid-elo.c in the Linux kernel before 5.16.11, a memory leak exists for a certain hid_parse error condition.
  22Monitor
• Later →CVE-2022-0998Mar 30, 2022 · An integer overflow flaw was found in the Linux kernel’s virtio device driver code in the way a user triggers the vhost_vdpa_config_validate
  31Monitor

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.