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CVE-2026-53211

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_meta_bridge: fix stale stack leak via IIFHWADDR register NFT_META_BRI_IIFHWADDR declares its destination register with len = ETH_ALEN (6 bytes), which the register-init tracking rounds up to two 32-bit registers (8 bytes). nft_meta_bridge_get_eval() then does memcpy(dest, br_dev->dev_addr, ETH_ALEN), writing only 6 bytes and leaving the upper 2 bytes of the second register as uninitialised nft_do_chain() stack.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:675201ecec2c9b51d141dc7f96814e21eeca5de20423347795b3c74d7ba10b7d
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bridge/netfilter/nft_meta_bridge.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"07acb9798477535933bd658ac9fa85b6cb10d995","status":"affected","version":"cbd2257dc96e3e46217540fcb095a757ffa20d96","versionType":"git"},{"lessThan":"f1e81d571e375d10e50e852223593493d98c1bac","status":"affected","version":"cbd2257dc96e3e46217540fcb095a757ffa20d96","versionType":"git"},{"lessThan":"c7d573551f9286100a055ef696cde6af54549677","status":"affected","version":"cbd2257…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bcb24d304f6a0d4ea5655263ab4f4a2e7e17f78b116d74de8c5f5bedc64aa033 · sha256:465079c72b609e79… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/bridge/netfilter/nft_meta_bridge.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_comm…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bcb24d304f6a0d4ea5655263ab4f4a2e7e17f78b116d74de8c5f5bedc64aa033 · sha256:465079c72b609e79… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/bridge/netfilter/nft_meta_bridge.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"07acb9798477535933bd658ac9fa85b6cb10d995","status":"affected","version":"cbd2257dc96e3e46217540fcb095a757ffa20d96","versionType":"git"},{"lessThan":"f1e81d571e375d10e50e852223593493d98c1bac","status":"affected","version":"cbd2257dc96e3e46217540fcb095a757ffa20d96","versionType":"git"},{"lessThan":"c7d573551f9286100a055ef696cde6af54549677","status":"affected","version":"cbd2257…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bcb24d304f6a0d4ea5655263ab4f4a2e7e17f78b116d74de8c5f5bedc64aa033 · sha256:465079c72b609e79… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/bridge/netfilter/nft_meta_bridge.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_comm…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bcb24d304f6a0d4ea5655263ab4f4a2e7e17f78b116d74de8c5f5bedc64aa033 · sha256:465079c72b609e79… · /containers/cna/affected/1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/07acb9798477535933bd658ac9fa85b6cb10d995"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bcb24d304f6a0d4ea5655263ab4f4a2e7e17f78b116d74de8c5f5bedc64aa033 · sha256:465079c72b609e79… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/c7d573551f9286100a055ef696cde6af54549677"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bcb24d304f6a0d4ea5655263ab4f4a2e7e17f78b116d74de8c5f5bedc64aa033 · sha256:465079c72b609e79… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/f1e81d571e375d10e50e852223593493d98c1bac"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bcb24d304f6a0d4ea5655263ab4f4a2e7e17f78b116d74de8c5f5bedc64aa033 · sha256:465079c72b609e79… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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