{"id":"CVE-2022-50706","state":"PUBLISHED","title":"net/ieee802154: don't warn zero-sized raw_sendmsg()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/ieee802154: don't warn zero-sized raw_sendmsg()\n\nsyzbot is hitting skb_assert_len() warning at __dev_queue_xmit() [1],\nfor PF_IEEE802154 socket's zero-sized raw_sendmsg() request is hitting\n__dev_queue_xmit() with skb->len == 0.\n\nSince PF_IEEE802154 socket's zero-sized raw_sendmsg() request was\nable to return 0, don't call __dev_queue_xmit() if packet length is 0.\n\n  ----------\n  #include <sys/socket.h>\n  #include <netinet/in.h>\n\n  int main(int argc, char *argv[])\n  {\n    struct sockaddr_in addr = { .sin_family = AF_INET, .sin_addr.s_addr = htonl(INADDR_LOOPBACK) };\n    struct iovec iov = { };\n    struct msghdr hdr = { .msg_name = &addr, .msg_namelen = sizeof(addr), .msg_iov = &iov, .msg_iovlen = 1 };\n    sendmsg(socket(PF_IEEE802154, SOCK_RAW, 0), &hdr, 0);\n    return 0;\n  }\n  ----------\n\nNote that this might be a sign that commit fd1894224407c484 (\"bpf: Don't\nredirect packets with invalid pkt_len\") should be reverted, for\nskb->len == 0 was acceptable for at least PF_IEEE802154 socket.","publishedAt":"2025-12-24T10:55:20.835Z","updatedAt":"2026-05-23T15:24:53.997Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8b68e53d56697a59b5c53893b53f508bbdf272a0","status":"affected","lessThan":"4a36de8947794fa21435d1e916e089095f3246a8","versionType":"git"},{"version":"6204bf78b2a903b96ba43afff6abc0b04d6e0462","status":"affected","lessThan":"791489a5c56396ddfed75fc525066d4738dace46","versionType":"git"},{"version":"a75987714bd2d8e59840667a28e15c1fa5c47554","status":"affected","lessThan":"34f31a2b667914ab701ca725554a0b447809d7ef","versionType":"git"},{"version":"72f2dc8993f10262092745a88cb2dd0fef094f23","status":"affected","lessThan":"df0da3fc131132b6c32a15c4da4ffa3a5aea1af2","versionType":"git"},{"version":"fd1894224407c484f652ad456e1ce423e89bb3eb","status":"affected","lessThan":"9974d220c5073d035b5469d1d8ecd71da86c7afd","versionType":"git"},{"version":"fd1894224407c484f652ad456e1ce423e89bb3eb","status":"affected","lessThan":"b12e924a2f5b960373459c8f8a514f887adf5cac","versionType":"git"},{"version":"5.4.212","status":"affected","lessThan":"5.4.220","versionType":"semver"},{"version":"5.10.141","status":"affected","lessThan":"5.10.150","versionType":"semver"},{"version":"5.15.65","status":"affected","lessThan":"5.15.75","versionType":"semver"},{"version":"5.19.7","status":"affected","lessThan":"5.19.17","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ieee802154/socket.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"5.4.220","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.150","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.75","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.19.17","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0.3","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ieee802154/socket.c"]}],"references":["https://git.kernel.org/stable/c/4a36de8947794fa21435d1e916e089095f3246a8","https://git.kernel.org/stable/c/791489a5c56396ddfed75fc525066d4738dace46","https://git.kernel.org/stable/c/34f31a2b667914ab701ca725554a0b447809d7ef","https://git.kernel.org/stable/c/df0da3fc131132b6c32a15c4da4ffa3a5aea1af2","https://git.kernel.org/stable/c/9974d220c5073d035b5469d1d8ecd71da86c7afd","https://git.kernel.org/stable/c/b12e924a2f5b960373459c8f8a514f887adf5cac"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50706.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50706","state":"PUBLISHED","datePublished":"2025-12-24T10:55:20.835Z","dateUpdated":"2026-05-23T15:24:53.997Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-24T10:53:15.518Z"},"containers":{"cna":{"title":"net/ieee802154: don't warn zero-sized raw_sendmsg()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/ieee802154: don't warn zero-sized raw_sendmsg()\n\nsyzbot is hitting skb_assert_len() warning at __dev_queue_xmit() [1],\nfor PF_IEEE802154 socket's zero-sized raw_sendmsg() request is hitting\n__dev_queue_xmit() with skb->len == 0.\n\nSince PF_IEEE802154 socket's zero-sized raw_sendmsg() request was\nable to return 0, don't call __dev_queue_xmit() if packet length is 0.\n\n  ----------\n  #include <sys/socket.h>\n  #include <netinet/in.h>\n\n  int main(int argc, char *argv[])\n  {\n    struct sockaddr_in addr = { .sin_family = AF_INET, .sin_addr.s_addr = htonl(INADDR_LOOPBACK) };\n    struct iovec iov = { };\n    struct msghdr hdr = { .msg_name = &addr, .msg_namelen = sizeof(addr), .msg_iov = &iov, .msg_iovlen = 1 };\n    sendmsg(socket(PF_IEEE802154, SOCK_RAW, 0), &hdr, 0);\n    return 0;\n  }\n  ----------\n\nNote that this might be a sign that commit fd1894224407c484 (\"bpf: Don't\nredirect packets with invalid pkt_len\") should be reverted, for\nskb->len == 0 was acceptable for at least PF_IEEE802154 socket."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8b68e53d56697a59b5c53893b53f508bbdf272a0","status":"affected","lessThan":"4a36de8947794fa21435d1e916e089095f3246a8","versionType":"git"},{"version":"6204bf78b2a903b96ba43afff6abc0b04d6e0462","status":"affected","lessThan":"791489a5c56396ddfed75fc525066d4738dace46","versionType":"git"},{"version":"a75987714bd2d8e59840667a28e15c1fa5c47554","status":"affected","lessThan":"34f31a2b667914ab701ca725554a0b447809d7ef","versionType":"git"},{"version":"72f2dc8993f10262092745a88cb2dd0fef094f23","status":"affected","lessThan":"df0da3fc131132b6c32a15c4da4ffa3a5aea1af2","versionType":"git"},{"version":"fd1894224407c484f652ad456e1ce423e89bb3eb","status":"affected","lessThan":"9974d220c5073d035b5469d1d8ecd71da86c7afd","versionType":"git"},{"version":"fd1894224407c484f652ad456e1ce423e89bb3eb","status":"affected","lessThan":"b12e924a2f5b960373459c8f8a514f887adf5cac","versionType":"git"},{"version":"5.4.212","status":"affected","lessThan":"5.4.220","versionType":"semver"},{"version":"5.10.141","status":"affected","lessThan":"5.10.150","versionType":"semver"},{"version":"5.15.65","status":"affected","lessThan":"5.15.75","versionType":"semver"},{"version":"5.19.7","status":"affected","lessThan":"5.19.17","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ieee802154/socket.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"5.4.220","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.150","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.75","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.19.17","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0.3","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ieee802154/socket.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/4a36de8947794fa21435d1e916e089095f3246a8"},{"url":"https://git.kernel.org/stable/c/791489a5c56396ddfed75fc525066d4738dace46"},{"url":"https://git.kernel.org/stable/c/34f31a2b667914ab701ca725554a0b447809d7ef"},{"url":"https://git.kernel.org/stable/c/df0da3fc131132b6c32a15c4da4ffa3a5aea1af2"},{"url":"https://git.kernel.org/stable/c/9974d220c5073d035b5469d1d8ecd71da86c7afd"},{"url":"https://git.kernel.org/stable/c/b12e924a2f5b960373459c8f8a514f887adf5cac"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:24:53.997Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.212","versionEndExcluding":"5.4.220"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.141","versionEndExcluding":"5.10.150"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.65","versionEndExcluding":"5.15.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19.7","versionEndExcluding":"5.19.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.0.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}