{"id":"CVE-2023-53716","state":"PUBLISHED","title":"net: fix skb leak in __skb_tstamp_tx()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix skb leak in __skb_tstamp_tx()\n\nCommit 50749f2dd685 (\"tcp/udp: Fix memleaks of sk and zerocopy skbs with\nTX timestamp.\") added a call to skb_orphan_frags_rx() to fix leaks with\nzerocopy skbs. But it ended up adding a leak of its own. When\nskb_orphan_frags_rx() fails, the function just returns, leaking the skb\nit just cloned. Free it before returning.\n\nThis bug was discovered and resolved using Coverity Static Analysis\nSecurity Testing (SAST) by Synopsys, Inc.","publishedAt":"2025-10-22T13:23:49.536Z","updatedAt":"2026-05-23T15:30:33.237Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"281072fb2a7294cde7acbf5375b879f40a8001b7","status":"affected","lessThan":"82501f1ead557cbee1c2467654ec109a80334d22","versionType":"git"},{"version":"1f69c086b20e27763af28145981435423f088268","status":"affected","lessThan":"779332447108545ef04682ea29af5f85c0202aee","versionType":"git"},{"version":"602fa8af44fd55a58f9e94eb673e8adad2c6cc46","status":"affected","lessThan":"58766252f6b2c0487cda6976a53d2bb03ae28e2a","versionType":"git"},{"version":"230a5ed7d813fb516de81d23f09d7506753e41e9","status":"affected","lessThan":"a594382ec6d0cc8cff5a8bc7e61b54e3858fb243","versionType":"git"},{"version":"43e4197dd5f6b474a8b16f8b6a42cd45cf4f9d1a","status":"affected","lessThan":"e06841a2abf9c82735cee39e88b1d79464088840","versionType":"git"},{"version":"cb52e7f24c1d01a536a847dff0d1d95889cc3b5c","status":"affected","lessThan":"cc18b4685910d5d9de8314bae9c55790701b1811","versionType":"git"},{"version":"426384dd4980040651536fef5feac4dcc4d7ee4e","status":"affected","lessThan":"f4d928c00254cfc9dd0ee7076f4a59bceec675f4","versionType":"git"},{"version":"50749f2dd6854a41830996ad302aef2ffaf011d8","status":"affected","lessThan":"8a02fb71d7192ff1a9a47c9d937624966c6e09af","versionType":"git"},{"version":"30290f210ba7426ff7592fe2eb4114b1b5bad219","status":"affected","versionType":"git"},{"version":"6.2.15","status":"affected","lessThan":"6.3","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/skbuff.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4.14.315","status":"affected","lessThan":"4.14.316","versionType":"semver"},{"version":"4.19.283","status":"affected","lessThan":"4.19.284","versionType":"semver"},{"version":"5.4.243","status":"affected","lessThan":"5.4.244","versionType":"semver"},{"version":"5.10.180","status":"affected","lessThan":"5.10.181","versionType":"semver"},{"version":"5.15.111","status":"affected","lessThan":"5.15.114","versionType":"semver"},{"version":"6.1.28","status":"affected","lessThan":"6.1.31","versionType":"semver"},{"version":"6.3.2","status":"affected","lessThan":"6.3.5","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/skbuff.c"]}],"references":["https://git.kernel.org/stable/c/82501f1ead557cbee1c2467654ec109a80334d22","https://git.kernel.org/stable/c/779332447108545ef04682ea29af5f85c0202aee","https://git.kernel.org/stable/c/58766252f6b2c0487cda6976a53d2bb03ae28e2a","https://git.kernel.org/stable/c/a594382ec6d0cc8cff5a8bc7e61b54e3858fb243","https://git.kernel.org/stable/c/e06841a2abf9c82735cee39e88b1d79464088840","https://git.kernel.org/stable/c/cc18b4685910d5d9de8314bae9c55790701b1811","https://git.kernel.org/stable/c/f4d928c00254cfc9dd0ee7076f4a59bceec675f4","https://git.kernel.org/stable/c/8a02fb71d7192ff1a9a47c9d937624966c6e09af"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53716.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53716","state":"PUBLISHED","datePublished":"2025-10-22T13:23:49.536Z","dateUpdated":"2026-05-23T15:30:33.237Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-10-22T13:21:37.347Z"},"containers":{"cna":{"title":"net: fix skb leak in __skb_tstamp_tx()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix skb leak in __skb_tstamp_tx()\n\nCommit 50749f2dd685 (\"tcp/udp: Fix memleaks of sk and zerocopy skbs with\nTX timestamp.\") added a call to skb_orphan_frags_rx() to fix leaks with\nzerocopy skbs. But it ended up adding a leak of its own. When\nskb_orphan_frags_rx() fails, the function just returns, leaking the skb\nit just cloned. Free it before returning.\n\nThis bug was discovered and resolved using Coverity Static Analysis\nSecurity Testing (SAST) by Synopsys, Inc."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"281072fb2a7294cde7acbf5375b879f40a8001b7","status":"affected","lessThan":"82501f1ead557cbee1c2467654ec109a80334d22","versionType":"git"},{"version":"1f69c086b20e27763af28145981435423f088268","status":"affected","lessThan":"779332447108545ef04682ea29af5f85c0202aee","versionType":"git"},{"version":"602fa8af44fd55a58f9e94eb673e8adad2c6cc46","status":"affected","lessThan":"58766252f6b2c0487cda6976a53d2bb03ae28e2a","versionType":"git"},{"version":"230a5ed7d813fb516de81d23f09d7506753e41e9","status":"affected","lessThan":"a594382ec6d0cc8cff5a8bc7e61b54e3858fb243","versionType":"git"},{"version":"43e4197dd5f6b474a8b16f8b6a42cd45cf4f9d1a","status":"affected","lessThan":"e06841a2abf9c82735cee39e88b1d79464088840","versionType":"git"},{"version":"cb52e7f24c1d01a536a847dff0d1d95889cc3b5c","status":"affected","lessThan":"cc18b4685910d5d9de8314bae9c55790701b1811","versionType":"git"},{"version":"426384dd4980040651536fef5feac4dcc4d7ee4e","status":"affected","lessThan":"f4d928c00254cfc9dd0ee7076f4a59bceec675f4","versionType":"git"},{"version":"50749f2dd6854a41830996ad302aef2ffaf011d8","status":"affected","lessThan":"8a02fb71d7192ff1a9a47c9d937624966c6e09af","versionType":"git"},{"version":"30290f210ba7426ff7592fe2eb4114b1b5bad219","status":"affected","versionType":"git"},{"version":"6.2.15","status":"affected","lessThan":"6.3","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/skbuff.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4.14.315","status":"affected","lessThan":"4.14.316","versionType":"semver"},{"version":"4.19.283","status":"affected","lessThan":"4.19.284","versionType":"semver"},{"version":"5.4.243","status":"affected","lessThan":"5.4.244","versionType":"semver"},{"version":"5.10.180","status":"affected","lessThan":"5.10.181","versionType":"semver"},{"version":"5.15.111","status":"affected","lessThan":"5.15.114","versionType":"semver"},{"version":"6.1.28","status":"affected","lessThan":"6.1.31","versionType":"semver"},{"version":"6.3.2","status":"affected","lessThan":"6.3.5","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/skbuff.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/82501f1ead557cbee1c2467654ec109a80334d22"},{"url":"https://git.kernel.org/stable/c/779332447108545ef04682ea29af5f85c0202aee"},{"url":"https://git.kernel.org/stable/c/58766252f6b2c0487cda6976a53d2bb03ae28e2a"},{"url":"https://git.kernel.org/stable/c/a594382ec6d0cc8cff5a8bc7e61b54e3858fb243"},{"url":"https://git.kernel.org/stable/c/e06841a2abf9c82735cee39e88b1d79464088840"},{"url":"https://git.kernel.org/stable/c/cc18b4685910d5d9de8314bae9c55790701b1811"},{"url":"https://git.kernel.org/stable/c/f4d928c00254cfc9dd0ee7076f4a59bceec675f4"},{"url":"https://git.kernel.org/stable/c/8a02fb71d7192ff1a9a47c9d937624966c6e09af"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:30:33.237Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.315","versionEndExcluding":"4.14.316"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.283","versionEndExcluding":"4.19.284"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.243","versionEndExcluding":"5.4.244"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.180","versionEndExcluding":"5.10.181"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.111","versionEndExcluding":"5.15.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.28","versionEndExcluding":"6.1.31"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3.2","versionEndExcluding":"6.3.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2.15"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}