{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31753","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-03-09T15:48:24.139Z","datePublished":"2026-05-01T14:14:44.953Z","dateUpdated":"2026-05-11T22:15:08.690Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:15:08.690Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nauxdisplay: line-display: fix NULL dereference in linedisp_release\n\nlinedisp_release() currently retrieves the enclosing struct linedisp via\nto_linedisp(). That lookup depends on the attachment list, but the\nattachment may already have been removed before put_device() invokes the\nrelease callback. This can happen in linedisp_unregister(), and can also\nbe reached from some linedisp_register() error paths.\n\nIn that case, to_linedisp() returns NULL and linedisp_release()\ndereferences it while freeing the display resources.\n\nThe struct device released here is the embedded linedisp->dev used by\nlinedisp_register(), so retrieve the enclosing object directly with\ncontainer_of() instead."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/auxdisplay/line-display.c"],"versions":[{"version":"66c93809487e62c4f59ef08625a3fbc0a7de6dd2","lessThan":"625fdac41cfc4ca9e1774a0d31d7985aec2c1d66","status":"affected","versionType":"git"},{"version":"66c93809487e62c4f59ef08625a3fbc0a7de6dd2","lessThan":"7f138de156b20d9f9da6f72f90b63c01941d97d3","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/auxdisplay/line-display.c"],"versions":[{"version":"6.19","status":"affected"},{"version":"0","lessThan":"6.19","status":"unaffected","versionType":"semver"},{"version":"6.19.12","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/625fdac41cfc4ca9e1774a0d31d7985aec2c1d66"},{"url":"https://git.kernel.org/stable/c/7f138de156b20d9f9da6f72f90b63c01941d97d3"}],"title":"auxdisplay: line-display: fix NULL dereference in linedisp_release","x_generator":{"engine":"bippy-1.2.0"}}}}