CVE-2022-50706
net/ieee802154: don't warn zero-sized raw_sendmsg()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: net/ieee802154: don't warn zero-sized raw_sendmsg() syzbot is hitting skb_assert_len() warning at __dev_queue_xmit() [1], for PF_IEEE802154 socket's zero-sized raw_sendmsg() request is hitting __dev_queue_xmit() with skb->len == 0. Since PF_IEEE802154 socket's zero-sized raw_sendmsg() request was able to return 0, don't call __dev_queue_xmit() if packet length is 0. ---------- #include <sys/socket.h> #include <netinet/in.h> int main(int argc, char *argv[]) { struct sockaddr_in addr = { .sin_family = AF_INET, .sin_addr.s_addr = htonl(INADDR_LOOPBACK) }; struct iovec iov = { }; struct msghdr hdr = { .msg_name = &addr, .msg_namelen = sizeof(addr), .msg_iov = &iov, .msg_iovlen = 1 }; sendmsg(socket(PF_IEEE802154, SOCK_RAW, 0), &hdr, 0); return 0; } ---------- Note that this might be a sign that commit fd1894224407c484 ("bpf: Don't redirect packets with invalid pkt_len") should be reverted, for skb->len == 0 was acceptable for at least PF_IEEE802154 socket.
Timeline
ID reserved
By Linux
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 8b68e53d56697a59b5c53893b53f508bbdf272a0 – < 4a36de8947794fa21435d1e916e089095f3246a8
- affected 6204bf78b2a903b96ba43afff6abc0b04d6e0462 – < 791489a5c56396ddfed75fc525066d4738dace46
- affected a75987714bd2d8e59840667a28e15c1fa5c47554 – < 34f31a2b667914ab701ca725554a0b447809d7ef
- affected 72f2dc8993f10262092745a88cb2dd0fef094f23 – < df0da3fc131132b6c32a15c4da4ffa3a5aea1af2
- affected fd1894224407c484f652ad456e1ce423e89bb3eb – < 9974d220c5073d035b5469d1d8ecd71da86c7afd
- affected fd1894224407c484f652ad456e1ce423e89bb3eb – < b12e924a2f5b960373459c8f8a514f887adf5cac
- affected 5.4.212 – < 5.4.220
- affected 5.10.141 – < 5.10.150
- affected 5.15.65 – < 5.15.75
- affected 5.19.7 – < 5.19.17
- affected 6.0
- unaffected < 6.0
- unaffected 5.4.220 – ≤ 5.4.*
- unaffected 5.10.150 – ≤ 5.10.*
- unaffected 5.15.75 – ≤ 5.15.*
- unaffected 5.19.17 – ≤ 5.19.*
- unaffected 6.0.3 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (6)
- https://git.kernel.org/stable/c/4a36de8947794fa21435d1e916e089095f3246a8 (opens in a new tab)
- https://git.kernel.org/stable/c/791489a5c56396ddfed75fc525066d4738dace46 (opens in a new tab)
- https://git.kernel.org/stable/c/34f31a2b667914ab701ca725554a0b447809d7ef (opens in a new tab)
- https://git.kernel.org/stable/c/df0da3fc131132b6c32a15c4da4ffa3a5aea1af2 (opens in a new tab)
- https://git.kernel.org/stable/c/9974d220c5073d035b5469d1d8ecd71da86c7afd (opens in a new tab)
- https://git.kernel.org/stable/c/b12e924a2f5b960373459c8f8a514f887adf5cac (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2022-50706)Record last updated .