{"id":"CVE-2026-53157","state":"PUBLISHED","title":"net: phonet: free phonet_device after RCU grace period","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phonet: free phonet_device after RCU grace period\n\nphonet_device_destroy() removes a phonet_device from the per-net device\nlist with list_del_rcu(), but frees it immediately. RCU readers walking\nthe same list can still hold a pointer to the object after it has been\nremoved, leading to a slab-use-after-free.\n\nUse kfree_rcu(), matching the lifetime rule already used by\nphonet_address_del() for the same object type.","publishedAt":"2026-06-25T08:38:40.132Z","updatedAt":"2026-07-04T11:50:55.214Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"d59794337ea496042288c7c68356d9b9ca7f46a9","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"2ec8011cce0cd0fc7a5068585d867fc08d508578","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"09c9b92c2010481160245244ea8fa1d06d5d4ae0","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"bd2ab4d800fc26814d89328d87b5f97ef6aa906a","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"52b8f5ef82c886f7cd24617915e4b1579ddfd001","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"bff309ea51f1395c1ef8be8b75ce62d28a319113","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"71de0177b28da751f407581a4515cf4d762f6296","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/phonet/pn_dev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.33","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.33","versionType":"semver"},{"version":"5.10.260","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.211","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.177","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.144","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.95","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.36","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.13","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/phonet/pn_dev.c"]}],"references":["https://git.kernel.org/stable/c/d59794337ea496042288c7c68356d9b9ca7f46a9","https://git.kernel.org/stable/c/6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763","https://git.kernel.org/stable/c/2ec8011cce0cd0fc7a5068585d867fc08d508578","https://git.kernel.org/stable/c/09c9b92c2010481160245244ea8fa1d06d5d4ae0","https://git.kernel.org/stable/c/bd2ab4d800fc26814d89328d87b5f97ef6aa906a","https://git.kernel.org/stable/c/52b8f5ef82c886f7cd24617915e4b1579ddfd001","https://git.kernel.org/stable/c/bff309ea51f1395c1ef8be8b75ce62d28a319113","https://git.kernel.org/stable/c/71de0177b28da751f407581a4515cf4d762f6296"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53157.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53157","state":"PUBLISHED","datePublished":"2026-06-25T08:38:40.132Z","dateUpdated":"2026-07-04T11:50:55.214Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.388Z"},"containers":{"cna":{"title":"net: phonet: free phonet_device after RCU grace period","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phonet: free phonet_device after RCU grace period\n\nphonet_device_destroy() removes a phonet_device from the per-net device\nlist with list_del_rcu(), but frees it immediately. RCU readers walking\nthe same list can still hold a pointer to the object after it has been\nremoved, leading to a slab-use-after-free.\n\nUse kfree_rcu(), matching the lifetime rule already used by\nphonet_address_del() for the same object type."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"d59794337ea496042288c7c68356d9b9ca7f46a9","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"2ec8011cce0cd0fc7a5068585d867fc08d508578","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"09c9b92c2010481160245244ea8fa1d06d5d4ae0","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"bd2ab4d800fc26814d89328d87b5f97ef6aa906a","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"52b8f5ef82c886f7cd24617915e4b1579ddfd001","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"bff309ea51f1395c1ef8be8b75ce62d28a319113","versionType":"git"},{"version":"eeb74a9d45f781ec6f47b9e0a75a6a427b53f165","status":"affected","lessThan":"71de0177b28da751f407581a4515cf4d762f6296","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/phonet/pn_dev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.33","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.33","versionType":"semver"},{"version":"5.10.260","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.211","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.177","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.144","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.95","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.36","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.13","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/phonet/pn_dev.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d59794337ea496042288c7c68356d9b9ca7f46a9"},{"url":"https://git.kernel.org/stable/c/6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763"},{"url":"https://git.kernel.org/stable/c/2ec8011cce0cd0fc7a5068585d867fc08d508578"},{"url":"https://git.kernel.org/stable/c/09c9b92c2010481160245244ea8fa1d06d5d4ae0"},{"url":"https://git.kernel.org/stable/c/bd2ab4d800fc26814d89328d87b5f97ef6aa906a"},{"url":"https://git.kernel.org/stable/c/52b8f5ef82c886f7cd24617915e4b1579ddfd001"},{"url":"https://git.kernel.org/stable/c/bff309ea51f1395c1ef8be8b75ce62d28a319113"},{"url":"https://git.kernel.org/stable/c/71de0177b28da751f407581a4515cf4d762f6296"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-07-04T11:50:55.214Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.33","versionEndExcluding":"5.10.260"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.33","versionEndExcluding":"5.15.211"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.33","versionEndExcluding":"6.1.177"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.33","versionEndExcluding":"6.6.144"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.33","versionEndExcluding":"6.12.95"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.33","versionEndExcluding":"6.18.36"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.33","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.33","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}