{"id":"CVE-2022-50365","summary":"skbuff: Account for tail adjustment during pull operations","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nskbuff: Account for tail adjustment during pull operations\n\nExtending the tail can have some unexpected side effects if a program uses\na helper like BPF_FUNC_skb_pull_data to read partial content beyond the\nhead skb headlen when all the skbs in the gso frag_list are linear with no\nhead_frag -\n\n  kernel BUG at net/core/skbuff.c:4219!\n  pc : skb_segment+0xcf4/0xd2c\n  lr : skb_segment+0x63c/0xd2c\n  Call trace:\n   skb_segment+0xcf4/0xd2c\n   __udp_gso_segment+0xa4/0x544\n   udp4_ufo_fragment+0x184/0x1c0\n   inet_gso_segment+0x16c/0x3a4\n   skb_mac_gso_segment+0xd4/0x1b0\n   __skb_gso_segment+0xcc/0x12c\n   udp_rcv_segment+0x54/0x16c\n   udp_queue_rcv_skb+0x78/0x144\n   udp_unicast_rcv_skb+0x8c/0xa4\n   __udp4_lib_rcv+0x490/0x68c\n   udp_rcv+0x20/0x30\n   ip_protocol_deliver_rcu+0x1b0/0x33c\n   ip_local_deliver+0xd8/0x1f0\n   ip_rcv+0x98/0x1a4\n   deliver_ptype_list_skb+0x98/0x1ec\n   __netif_receive_skb_core+0x978/0xc60\n\nFix this by marking these skbs as GSO_DODGY so segmentation can handle\nthe tail updates accordingly.","modified":"2026-10-28T02:30:56.132051181Z","published":"2025-09-17T14:56:16.648Z","related":["SUSE-SU-2025:03614-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50365.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2d59f0ca153e9573ec4f140988c0ccca0eb4181b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2d7afdcbc9d32423f177ee12b7c93783aea338fb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/331615d837f4979eb91a336a223a5c7f7886ecd5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/668dc454bcbd1da73605201ff43f988c70848215"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6ac417d71b80e74b002313fcd73f7e9008e8e457"},{"type":"WEB","url":"https://git.kernel.org/stable/c/821be5a5ab09a40ba09cb5ba354f18cf7996fea0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8fb773eed4909ef5dc1bbeb3629a337d3336df7e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/946dd5dc4fcc4123cdfe3942b20012c4448cf89a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ff3743d00f41d803e6ab9334962b674f3b7fd0cb"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50365.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50365"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"162a5a8c3aff15c449e6b38355cdf80ab4f77a5a"},{"fixed":"ff3743d00f41d803e6ab9334962b674f3b7fd0cb"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"55fb612bef7fd237fb70068e2b6ff1cd1543a8ef"},{"fixed":"6ac417d71b80e74b002313fcd73f7e9008e8e457"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"821302dd0c51d29269ef73a595bdff294419e2cd"},{"fixed":"2d59f0ca153e9573ec4f140988c0ccca0eb4181b"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3dcbdb134f329842a38f0e6797191b885ab00a00"},{"fixed":"668dc454bcbd1da73605201ff43f988c70848215"},{"fixed":"821be5a5ab09a40ba09cb5ba354f18cf7996fea0"},{"fixed":"8fb773eed4909ef5dc1bbeb3629a337d3336df7e"},{"fixed":"946dd5dc4fcc4123cdfe3942b20012c4448cf89a"},{"fixed":"331615d837f4979eb91a336a223a5c7f7886ecd5"},{"fixed":"2d7afdcbc9d32423f177ee12b7c93783aea338fb"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4.9.194"},{"fixed":"4.9.337"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4.14.145"},{"fixed":"4.14.303"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4.19.74"},{"fixed":"4.19.270"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.2.16"},{"fixed":"5.3"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"92984818ff8cfd97311a5e0ac27f148a00df2b54"}]}],"versions":["v4.9.336","v4.9.335","v4.9.334","v4.9.333","v4.9.332","v4.9.331","v4.9.330","v4.9.329","v4.9.328","v4.9.327","v4.9.326","v4.9.325","v4.9.324","v4.9.323","v4.9.322","v4.9.321","v4.9.320","v4.9.319","v4.9.318","v4.9.317","v4.9.316","v4.9.315","v4.9.314","v4.9.313","v4.9.312","v4.9.311","v4.9.310","v4.9.309","v4.9.308","v4.9.307","v4.9.306","v4.9.305","v4.9.304","v4.9.303","v4.9.302","v4.9.301","v4.9.300","v4.9.299","v4.9.298","v4.9.297","v4.9.296","v4.9.295","v4.9.294","v4.9.293","v4.9.292","v4.9.291","v4.9.290","v4.9.289","v4.9.288","v4.9.287","v4.9.286","v4.9.285","v4.9.284","v4.9.283","v4.9.282","v4.9.281","v4.9.280","v4.9.279","v4.9.278","v4.9.277","v4.9.276","v4.9.275","v4.9.274","v4.9.273","v4.9.272","v4.9.271","v4.9.270","v4.9.269","v4.9.268","v4.9.267","v4.9.266","v4.9.265","v4.9.264","v4.9.263","v4.9.262","v4.9.261","v4.9.260","v4.9.259","v4.9.258","v4.9.257","v4.9.256","v4.9.255","v4.9.254","v4.9.253","v4.9.252","v4.9.251","v4.9.250","v4.9.249","v4.9.248","v4.9.247","v4.9.246","v4.9.245","v4.9.244","v4.9.243","v4.9.242","v4.9.241","v4.9.240","v4.9.239","v4.9.238","v4.9.237","v4.9.236","v4.9.235","v4.9.234","v4.9.233","v4.9.232","v4.9.231","v4.9.230","v4.9.229","v4.9.228","v4.9.227","v4.9.226","v4.9.225","v4.9.224","v4.9.223","v4.9.222","v4.9.221","v4.9.220","v4.9.219","v4.9.218","v4.9.217","v4.9.216","v4.9.215","v4.9.214","v4.9.213","v4.9.212","v4.9.211","v4.9.210","v4.9.209","v4.9.208","v4.9.207","v4.9.206","v4.9.205","v4.9.204","v4.9.203","v4.9.202","v4.9.201","v4.9.200","v4.9.199","v4.9.198","v4.9.197","v4.9.196","v4.9.195","v4.9.194","v4.14.302","v4.14.301","v4.14.300","v4.14.299","v4.14.298","v4.14.297","v4.14.296","v4.14.295","v4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