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CVE-2026-23298

In the Linux kernel, the following vulnerability has been resolved: can: ucan: Fix infinite loop from zero-length messages If a broken ucan device gets a message with the message length field set to 0, then the driver will loop for forever in ucan_read_bulk_callback(), hanging the system. If the length is 0, just skip the message and go on to the next one. This has been fixed in the kvaser_usb driver in the past in commit 0c73772cd2b8 ("can: kvaser_usb: leaf: Fix potential infinite loop in c
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:29cae67a9493027fc0c5f310a05cd398c6f3495b5958ea27d71012c8371af5dc
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":["drivers/net/can/usb/ucan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ca07d3c6eef14d34e6fdeefe55058db045be29dc","status":"affected","version":"9f2d3eae88d26c29d96e42983b755940d9169cd9","versionType":"git"},{"lessThan":"e7bb6e0606b5f233531aaaad9542d69fbb792115","status":"affected","version":"9f2d3eae88d26c29d96e42983b755940d9169cd9","versionType":"git"},{"lessThan":"ab6f075492d37368b4c7b0df7f7fdc2b666887fc","status":"affected","version":"9f2d3eae88d26c29d96…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/can/usb/ucan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"le…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/can/usb/ucan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ca07d3c6eef14d34e6fdeefe55058db045be29dc","status":"affected","version":"9f2d3eae88d26c29d96e42983b755940d9169cd9","versionType":"git"},{"lessThan":"e7bb6e0606b5f233531aaaad9542d69fbb792115","status":"affected","version":"9f2d3eae88d26c29d96e42983b755940d9169cd9","versionType":"git"},{"lessThan":"ab6f075492d37368b4c7b0df7f7fdc2b666887fc","status":"affected","version":"9f2d3eae88d26c29d96…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/can/usb/ucan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"le…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/affected/1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/13b646eec3ba1131180803f5aaf1fee23540ad8f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/1e446fd0582ad8be9f6dafb115fc2e7245f9bea7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/aa9e0a7fe5efc2f74327fd37d828e9a51d9ff588"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/ab6f075492d37368b4c7b0df7f7fdc2b666887fc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/bd85f21a6219aeae4389d700c54f1799f4b814e0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/c7bc62be6c1a60bb21301692009590b1ffda91d9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/ca07d3c6eef14d34e6fdeefe55058db045be29dc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/e7bb6e0606b5f233531aaaad9542d69fbb792115"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f6089d57b33a61e2d82cb11296b0add01b89fe3dc2a120854ba85474f0ea702 · sha256:a83e4e039f656135… · /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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