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Vulnerabilities

Vulnerability · CVE-2022-50253

In the Linux kernel, the following vulnerability has been resolved: bpf: make sure skb->len != 0 when redirecting to a tunneling device syzkaller managed to trigger another case wh

Published Sep 15, 2025 · catalog updated May 11, 2026 · Linux Linux

Check if you run it

No confirmed exploitation is on record for CVE-2022-50253. EPSS is 0.16%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.16%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d <f186303845a01cc7e991f9dc51d7e5a3cdc7aedb

In the Linux kernel, the following vulnerability has been resolved: bpf: make sure skb->len != 0 when redirecting to a tunneling device syzkaller managed to trigger another case where skb->len == 0 when we enter __dev_queue_xmit: WARNING: CPU: 0 PID: 2470 at include/linux/skbuff.h:2576 skb_assert_len include/linux/skbuff.h:2576 [inline] WARNING: CPU: 0 PID: 2470 at include/linux/skbuff.h:2576 __dev_queue_xmit+0x2069/0x35e0 net/core/dev.c:4295 Call Trace: dev_queue_xmit+0x17/0x20 net/core/dev.c:4406 __bpf_tx_skb net/core/filter.c:2115 [inline] __bpf_redirect_no_mac net/core/filter.c:2140 [inlin

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux 4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d <f186303845a01cc7e991f9dc51d7e5a3cdc7aedb4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d <f186303845a01cc7e991f9dc51d7e5a3cdc7aedb

How to fix CVE-2022-50253

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2022-50253. EPSS is 0.16%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux 4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d <f186303845a01cc7e991f9dc51d7e5a3cdc7aedb 4e3264d21b90984c2165e8fe5a7b64cf25bc2c2d <f186303845a01cc7e991f9dc51d7e5a3cdc7aedb. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.16%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 15, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: bpf: make sure skb->len != 0 when redirecting to a tunneling device syzkaller managed to trigger another case where skb->len == 0 when we enter __dev_queue_xmit: WARNING: CPU: 0 PID: 2470 at include/linux/skbuff.h:2576 skb_assert_len include/linux/skbuff.h:2576 [inline] WARNING: CPU: 0 PID: 2470 at include/linux/skbuff.h:2576 __de

  2. May 11, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: bpf: make sure skb->len != 0 when redirecting to a tunneling device syzkaller managed to trigger another case where skb->len == 0 when we enter __dev_queue_xmit: WARNING: CPU: 0 PID: 2470 at include/linux/skbuff.h:2576 skb_assert_len include/linux/skbuff.h:2576 [inline] WARNING: CPU: 0 PID: 2470 at include/linux/skbuff.h:2576 __de

Sources

  • CVE.orgVulnerability recordCVE-2022-50253

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-50253

    30-day exploitation probability 0.16%

    first.org
  • EUVDVulnerability recordEUVD-2022-55499

    In the Linux kernel, the following vulnerability has been resolved: bpf: make sure skb->len != 0 when redirecting to a tunneling device syzkaller managed to trigger another case where skb->len == 0 when we enter __dev_queue_xmit: WARNING: CPU: 0 PID: 2470 at include/linux/skbuff.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 21, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.