{"id":"CVE-2026-43463","state":"PUBLISHED","title":"rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()\n\nrxrpc_kernel_lookup_peer() can also return error pointers in addition to\nNULL, so just checking for NULL is not sufficient.\n\nFix this by:\n\n (1) Changing rxrpc_kernel_lookup_peer() to return -ENOMEM rather than NULL\n     on allocation failure.\n\n (2) Making the callers in afs use IS_ERR() and PTR_ERR() to pass on the\n     error code returned.","publishedAt":"2026-05-08T14:22:25.346Z","updatedAt":"2026-10-21T12:40:48.202Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"72904d7b9bfbf2dd146254edea93958bc35bbbfe","status":"affected","lessThan":"d854c93b12f2076c564f595b41b93b02fd42a0f9","versionType":"git"},{"version":"72904d7b9bfbf2dd146254edea93958bc35bbbfe","status":"affected","lessThan":"d55fa7cd4b19ba91b34b307d769c149e56ad0a75","versionType":"git"},{"version":"72904d7b9bfbf2dd146254edea93958bc35bbbfe","status":"affected","lessThan":"54331c5dcc6d97683d7ca2788e7ef9c9505e1477","versionType":"git"},{"version":"72904d7b9bfbf2dd146254edea93958bc35bbbfe","status":"affected","lessThan":"4245a79003adf30e67f8e9060915bd05cb31d142","versionType":"git"},{"version":"056fc740be000d39a7dba700a935f3bbfbc664e6","status":"affected","versionType":"git"},{"version":"6.7.3","status":"affected","lessThan":"6.8","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/afs/addr_list.c","net/rxrpc/af_rxrpc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.8","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.19","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.9","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/afs/addr_list.c","net/rxrpc/af_rxrpc.c"]}],"references":["https://git.kernel.org/stable/c/d854c93b12f2076c564f595b41b93b02fd42a0f9","https://git.kernel.org/stable/c/d55fa7cd4b19ba91b34b307d769c149e56ad0a75","https://git.kernel.org/stable/c/54331c5dcc6d97683d7ca2788e7ef9c9505e1477","https://git.kernel.org/stable/c/4245a79003adf30e67f8e9060915bd05cb31d142"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43463.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43463","state":"PUBLISHED","datePublished":"2026-05-08T14:22:25.346Z","dateUpdated":"2026-10-21T12:40:48.202Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:56.010Z"},"containers":{"cna":{"title":"rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()\n\nrxrpc_kernel_lookup_peer() can also return error pointers in addition to\nNULL, so just checking for NULL is not sufficient.\n\nFix this by:\n\n (1) Changing rxrpc_kernel_lookup_peer() to return -ENOMEM rather than NULL\n     on allocation failure.\n\n (2) Making the callers in afs use IS_ERR() and PTR_ERR() to pass on the\n     error code returned."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"72904d7b9bfbf2dd146254edea93958bc35bbbfe","status":"affected","lessThan":"d854c93b12f2076c564f595b41b93b02fd42a0f9","versionType":"git"},{"version":"72904d7b9bfbf2dd146254edea93958bc35bbbfe","status":"affected","lessThan":"d55fa7cd4b19ba91b34b307d769c149e56ad0a75","versionType":"git"},{"version":"72904d7b9bfbf2dd146254edea93958bc35bbbfe","status":"affected","lessThan":"54331c5dcc6d97683d7ca2788e7ef9c9505e1477","versionType":"git"},{"version":"72904d7b9bfbf2dd146254edea93958bc35bbbfe","status":"affected","lessThan":"4245a79003adf30e67f8e9060915bd05cb31d142","versionType":"git"},{"version":"056fc740be000d39a7dba700a935f3bbfbc664e6","status":"affected","versionType":"git"},{"version":"6.7.3","status":"affected","lessThan":"6.8","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/afs/addr_list.c","net/rxrpc/af_rxrpc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.8","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.19","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.9","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/afs/addr_list.c","net/rxrpc/af_rxrpc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d854c93b12f2076c564f595b41b93b02fd42a0f9"},{"url":"https://git.kernel.org/stable/c/d55fa7cd4b19ba91b34b307d769c149e56ad0a75"},{"url":"https://git.kernel.org/stable/c/54331c5dcc6d97683d7ca2788e7ef9c9505e1477"},{"url":"https://git.kernel.org/stable/c/4245a79003adf30e67f8e9060915bd05cb31d142"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:40:48.202Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.18.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.19.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}