# CVE-2022-50706: linux: In the Linux kernel, the following vulnerability has been resolved:  net/ieee802154: don't warn zero-sized raw_sendms...

CVE-2022-50706 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50706, released December 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-50706
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 24, 2025

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.0.3-1 | [DEBIAN-CVE-2022-50706](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50706.md) | Dec 24, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.0.3-1 | [DEBIAN-CVE-2022-50706](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50706.md) | Dec 24, 2025 |
| Linux | linux Debian 14 | 6.0.3-1 | [DEBIAN-CVE-2022-50706](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50706.md) | Dec 24, 2025 |

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