CVE Explorer

CVE-2026-63949

In the Linux kernel, the following vulnerability has been resolved: auxdisplay: line-display: fix OOB read on zero-length message_store() linedisp_display() unconditionally reads msg[count - 1] before checking whether count is zero, so a write of zero bytes to the message sysfs attribute hits msg[-1]: write(fd, "", 0); -> message_store(..., buf, count=0) -> linedisp_display(linedisp, buf, count=0) -> msg[count - 1] == '\n' ; OOB read The kernfs write buffer for that store is a

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bfccdd5757a49e8a1872dec1b521a388c10b67a2e85457a7d566c23dcd60819a

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/auxdisplay/line-display.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.16"},{"lessThan":"5.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.93","versionType":"semver"},…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:602f72fe4b08a94b088df1efbb5870ffa62c2cc64d8e20449955e5ce76bbfb34 · sha256:6bff865314b1a754… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/auxdisplay/line-display.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ca5b0781946d5083ceafa752141f47f085853620","status":"affected","version":"7e76aece6f036cb7ada4858d6aa73825bfe22983","versionType":"git"},{"lessThan":"8776032fe989a9b5fc77f2de5e03e4adb44c630e","status":"affected","version":"7e76aece6f036cb7ada4858d6aa73825bfe22983","versionType":"git"},{"lessThan":"3859960daeb9b7b39b9847b5b0113bc6081eb735","status":"affected","version":"7e76aece6f03…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:602f72fe4b08a94b088df1efbb5870ffa62c2cc64d8e20449955e5ce76bbfb34 · sha256:6bff865314b1a754… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:602f72fe4b08a94b088df1efbb5870ffa62c2cc64d8e20449955e5ce76bbfb34 · sha256:6bff865314b1a754… · /containers/cna/affected/1

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:602f72fe4b08a94b088df1efbb5870ffa62c2cc64d8e20449955e5ce76bbfb34 · sha256:6bff865314b1a754… · /containers/cna/affected/0

Source references

6 source assertions

{"url":"https://git.kernel.org/stable/c/197476b126010bac1b3199833c6966cd6f54c2a9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:602f72fe4b08a94b088df1efbb5870ffa62c2cc64d8e20449955e5ce76bbfb34 · sha256:6bff865314b1a754… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/3859960daeb9b7b39b9847b5b0113bc6081eb735"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:602f72fe4b08a94b088df1efbb5870ffa62c2cc64d8e20449955e5ce76bbfb34 · sha256:6bff865314b1a754… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/6ad4f75ef9f3372fce8cad494e789ac6a5507bef"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:602f72fe4b08a94b088df1efbb5870ffa62c2cc64d8e20449955e5ce76bbfb34 · sha256:6bff865314b1a754… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/8776032fe989a9b5fc77f2de5e03e4adb44c630e"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:602f72fe4b08a94b088df1efbb5870ffa62c2cc64d8e20449955e5ce76bbfb34 · sha256:6bff865314b1a754… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/a7511dcd9dd4bc55d123f9b800c8a4ed2662e5c6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:602f72fe4b08a94b088df1efbb5870ffa62c2cc64d8e20449955e5ce76bbfb34 · sha256:6bff865314b1a754… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/ca5b0781946d5083ceafa752141f47f085853620"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:602f72fe4b08a94b088df1efbb5870ffa62c2cc64d8e20449955e5ce76bbfb34 · sha256:6bff865314b1a754… · /containers/cna/references/0

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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