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CVE-2026-63834

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tp_meter: restrict number of unacked list entries When the unacked_list is unbound, an attacker could send messages with small lengths and appropriated seqno + gaps to force the receiver to allocate more and more unacked_list entries. And the end either causing an out-of-memory situation or increase the management overhead for the (large) list that significant portions of CPU cycles are wasted in searching through
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:377dfd3d8e9c034deb714d81751a17b0e04658c8775f926cec844684779a89a8
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/batman-adv/tp_meter.c","net/batman-adv/types.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"31a88792bfba142be3c9521538c1db805677381f","status":"affected","version":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","versionType":"git"},{"lessThan":"1111a3381bca2d1f084a07686bc783af5ab23df7","status":"affected","version":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","versionType":"git"},{"lessThan":"1c616b0be4bd8399d485e25e91859373b95d6013","status":"affected","versi…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/batman-adv/tp_meter.c","net/batman-adv/types.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.8"},{"lessThan":"4.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.260","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versi…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/batman-adv/tp_meter.c","net/batman-adv/types.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"31a88792bfba142be3c9521538c1db805677381f","status":"affected","version":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","versionType":"git"},{"lessThan":"1111a3381bca2d1f084a07686bc783af5ab23df7","status":"affected","version":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","versionType":"git"},{"lessThan":"1c616b0be4bd8399d485e25e91859373b95d6013","status":"affected","versi…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/batman-adv/tp_meter.c","net/batman-adv/types.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.8"},{"lessThan":"4.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.260","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versi…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/affected/1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/1111a3381bca2d1f084a07686bc783af5ab23df7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/1c616b0be4bd8399d485e25e91859373b95d6013"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/1fb8762600a393d1caccd63be5d07e1756982d68"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/2233787658db859f0a9b83cb397cf783bb8be865"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/31a88792bfba142be3c9521538c1db805677381f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/c6231d628d06d841bc1617b2f7034f5f39876b16"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/e7c775110e1858e5a7471a23a9c9658c0af9df89"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/f8c499fd275e59203b77fca76ae6ef2d096c2133"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:075ebf13b7fbecefc2ee0611becfaee21de1b81b5be8a627e93db94b141c9c9a · sha256:6736f60a6536bbb0… · /containers/cna/references/3

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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