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CVE-2026-53013

In the Linux kernel, the following vulnerability has been resolved: macvlan: fix macvlan_get_size() not reserving space for IFLA_MACVLAN_BC_CUTOFF macvlan_get_size() does not account for IFLA_MACVLAN_BC_CUTOFF, but macvlan_fill_info() conditionally includes it when port->bc_cutoff != 1. This causes nla_put_s32() to fail with -EMSGSIZE when the netlink skb runs out of space, triggering a WARN_ON in rtnetlink and preventing the interface from being dumped. The bug can be reproduced with: ip
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2980321ccf57142c0bfe7fbda7a254a88133b0a53c192252680f3268a108a81b
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":"affected","product":"Linux","programFiles":["drivers/net/macvlan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.4"},{"lessThan":"6.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.141","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrE…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d238819ebb2b2255cd0ad0eacdefa8f3a80553982c6ac7e587ea67c36c0a58e0 · sha256:fa9277b7cf08f088… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/macvlan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4979252758387b338ca968ba7e0515b0ae2257e3","status":"affected","version":"954d1fa1ac93aa8a66f7d9a9ba545cf7f020d348","versionType":"git"},{"lessThan":"77ecfa4e27f282d224215895ddfbeb916fc75e24","status":"affected","version":"954d1fa1ac93aa8a66f7d9a9ba545cf7f020d348","versionType":"git"},{"lessThan":"b6b7154e9f5d75b608ceb2d05b376de8c638c40e","status":"affected","version":"954d1fa1ac93aa8a66f7d9a9…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d238819ebb2b2255cd0ad0eacdefa8f3a80553982c6ac7e587ea67c36c0a58e0 · sha256:fa9277b7cf08f088… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/macvlan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.4"},{"lessThan":"6.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.141","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrE…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d238819ebb2b2255cd0ad0eacdefa8f3a80553982c6ac7e587ea67c36c0a58e0 · sha256:fa9277b7cf08f088… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/macvlan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4979252758387b338ca968ba7e0515b0ae2257e3","status":"affected","version":"954d1fa1ac93aa8a66f7d9a9ba545cf7f020d348","versionType":"git"},{"lessThan":"77ecfa4e27f282d224215895ddfbeb916fc75e24","status":"affected","version":"954d1fa1ac93aa8a66f7d9a9ba545cf7f020d348","versionType":"git"},{"lessThan":"b6b7154e9f5d75b608ceb2d05b376de8c638c40e","status":"affected","version":"954d1fa1ac93aa8a66f7d9a9…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d238819ebb2b2255cd0ad0eacdefa8f3a80553982c6ac7e587ea67c36c0a58e0 · sha256:fa9277b7cf08f088… · /containers/cna/affected/0

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/1c004f14ccdc11585625c168bb9a7c5e1b8afb0c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d238819ebb2b2255cd0ad0eacdefa8f3a80553982c6ac7e587ea67c36c0a58e0 · sha256:fa9277b7cf08f088… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/4979252758387b338ca968ba7e0515b0ae2257e3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d238819ebb2b2255cd0ad0eacdefa8f3a80553982c6ac7e587ea67c36c0a58e0 · sha256:fa9277b7cf08f088… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/77ecfa4e27f282d224215895ddfbeb916fc75e24"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d238819ebb2b2255cd0ad0eacdefa8f3a80553982c6ac7e587ea67c36c0a58e0 · sha256:fa9277b7cf08f088… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/b6b7154e9f5d75b608ceb2d05b376de8c638c40e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d238819ebb2b2255cd0ad0eacdefa8f3a80553982c6ac7e587ea67c36c0a58e0 · sha256:fa9277b7cf08f088… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/fa92a77b0ed4d5f11a71665a232ac5a54a4b055d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d238819ebb2b2255cd0ad0eacdefa8f3a80553982c6ac7e587ea67c36c0a58e0 · sha256:fa9277b7cf08f088… · /containers/cna/references/4

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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