{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49728","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-02-26T02:21:30.448Z","datePublished":"2025-02-26T02:24:39.347Z","dateUpdated":"2025-12-23T13:25:11.915Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-12-23T13:25:11.915Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix signed integer overflow in __ip6_append_data\n\nResurrect ubsan overflow checks and ubsan report this warning,\nfix it by change the variable [length] type to size_t.\n\nUBSAN: signed-integer-overflow in net/ipv6/ip6_output.c:1489:19\n2147479552 + 8567 cannot be represented in type 'int'\nCPU: 0 PID: 253 Comm: err Not tainted 5.16.0+ #1\nHardware name: linux,dummy-virt (DT)\nCall trace:\n  dump_backtrace+0x214/0x230\n  show_stack+0x30/0x78\n  dump_stack_lvl+0xf8/0x118\n  dump_stack+0x18/0x30\n  ubsan_epilogue+0x18/0x60\n  handle_overflow+0xd0/0xf0\n  __ubsan_handle_add_overflow+0x34/0x44\n  __ip6_append_data.isra.48+0x1598/0x1688\n  ip6_append_data+0x128/0x260\n  udpv6_sendmsg+0x680/0xdd0\n  inet6_sendmsg+0x54/0x90\n  sock_sendmsg+0x70/0x88\n  ____sys_sendmsg+0xe8/0x368\n  ___sys_sendmsg+0x98/0xe0\n  __sys_sendmmsg+0xf4/0x3b8\n  __arm64_sys_sendmmsg+0x34/0x48\n  invoke_syscall+0x64/0x160\n  el0_svc_common.constprop.4+0x124/0x300\n  do_el0_svc+0x44/0xc8\n  el0_svc+0x3c/0x1e8\n  el0t_64_sync_handler+0x88/0xb0\n  el0t_64_sync+0x16c/0x170\n\nChanges since v1:\n-Change the variable [length] type to unsigned, as Eric Dumazet suggested.\nChanges since v2:\n-Don't change exthdrlen type in ip6_make_skb, as Paolo Abeni suggested.\nChanges since v3:\n-Don't change ulen type in udpv6_sendmsg and l2tp_ip6_sendmsg, as\nJakub Kicinski suggested."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/ipv6.h","net/ipv6/ip6_output.c"],"versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"f26422eabeb517629568edf8c2dd9c6cb9147584","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"70549c80fe80ac4e2a22068c76ebebced24f7e74","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"84dc940890e91e42898e4443a093281702440abf","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"f93431c86b631bbca5614c66f966bf3ddb3c2803","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/ipv6.h","net/ipv6/ip6_output.c"],"versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","status":"unaffected","versionType":"semver"},{"version":"5.10.236","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.180","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.18.6","lessThanOrEqual":"5.18.*","status":"unaffected","versionType":"semver"},{"version":"5.19","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":"2.6.12","versionEndExcluding":"5.10.236"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.15.180"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.18.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/f26422eabeb517629568edf8c2dd9c6cb9147584"},{"url":"https://git.kernel.org/stable/c/70549c80fe80ac4e2a22068c76ebebced24f7e74"},{"url":"https://git.kernel.org/stable/c/84dc940890e91e42898e4443a093281702440abf"},{"url":"https://git.kernel.org/stable/c/f93431c86b631bbca5614c66f966bf3ddb3c2803"}],"title":"ipv6: Fix signed integer overflow in __ip6_append_data","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T19:27:54.237Z"}}]}}