{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53479","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-10-01T11:39:39.401Z","datePublished":"2025-10-01T11:42:47.987Z","dateUpdated":"2026-05-11T19:45:46.984Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:45:46.984Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/acpi: Fix a use-after-free in cxl_parse_cfmws()\n\nKASAN and KFENCE detected an user-after-free in the CXL driver. This\nhappens in the cxl_decoder_add() fail path. KASAN prints the following\nerror:\n\n   BUG: KASAN: slab-use-after-free in cxl_parse_cfmws (drivers/cxl/acpi.c:299)\n\nThis happens in cxl_parse_cfmws(), where put_device() is called,\nreleasing cxld, which is accessed later.\n\nUse the local variables in the dev_err() instead of pointing to the\nreleased memory. Since the dev_err() is printing a resource, change the open\ncoded print format to use the %pr format specifier."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cxl/acpi.c"],"versions":[{"version":"e50fe01e1f2a4aba2275edee7d5c77ac87674ddb","lessThan":"748fadc08bcbdaf573b34d9784bb3dbd87441dbf","status":"affected","versionType":"git"},{"version":"e50fe01e1f2a4aba2275edee7d5c77ac87674ddb","lessThan":"316db489647b8ddc381682597e89787eac61a278","status":"affected","versionType":"git"},{"version":"e50fe01e1f2a4aba2275edee7d5c77ac87674ddb","lessThan":"4cf67d3cc9994a59cf77bb9c0ccf9007fe916afe","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/cxl/acpi.c"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"6.1.43","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.4.8","lessThanOrEqual":"6.4.*","status":"unaffected","versionType":"semver"},{"version":"6.5","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":"6.0","versionEndExcluding":"6.1.43"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.4.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.5"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/748fadc08bcbdaf573b34d9784bb3dbd87441dbf"},{"url":"https://git.kernel.org/stable/c/316db489647b8ddc381682597e89787eac61a278"},{"url":"https://git.kernel.org/stable/c/4cf67d3cc9994a59cf77bb9c0ccf9007fe916afe"}],"title":"cxl/acpi: Fix a use-after-free in cxl_parse_cfmws()","x_generator":{"engine":"bippy-1.2.0"}}}}