CVE-2024-26752
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
l2tp: pass correct message length to ip6_append_data
In the Linux kernel, the following vulnerability has been resolved: l2tp: pass correct message length to ip6_append_data l2tp_ip6_sendmsg needs to avoid accounting for the transport header twice when splicing more data into an already partially-occupied skbuff. To manage this, we check whether the skbuff contains data using skb_queue_empty when deciding how much data to append using ip6_append_data. However, the code which performed the calculation was incorrect: ulen = len + skb_queue_empty(&sk->sk_write_queue) ? transhdrlen : 0; ...due to C operator precedence, this ends up setting ulen to transhdrlen for messages with a non-zero length, which results in corrupted packets on the wire. Add parentheses to correct the calculation in line with the original intent.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 559d697c5d072593d22b3e0bd8b8081108aeaf59 | affected | git | 4c3ce64bc9d36ca9164dd6c77ff144c121011aae | Unavailable | None listed |
| 1fc793d68d50dee4782ef2e808913d5dd880bcc6 | affected | git | c1d3a84a67db910ce28a871273c992c3d7f9efb5 | Unavailable | None listed |
| 96b2e1090397217839fcd6c9b6d8f5d439e705ed | affected | git | dcb4d14268595065c85dc5528056713928e17243 | Unavailable | None listed |
| cd1189956393bf850b2e275e37411855d3bd86bb | affected | git | 0da15a70395182ee8cb75716baf00dddc0bea38d | Unavailable | None listed |
| f6a7182179c0ed788e3755ee2ed18c888ddcc33f | affected | git | 13cd1daeea848614e585b2c6ecc11ca9c8ab2500 | Unavailable | None listed |
| 9d4c75800f61e5d75c1659ba201b6c0c7ead3070 | affected | git | 804bd8650a3a2bf3432375f8c97d5049d845ce56 | Unavailable | None listed |
| 9d4c75800f61e5d75c1659ba201b6c0c7ead3070 | affected | git | 83340c66b498e49353530e41542500fc8a4782d6 | Unavailable | None listed |
| 9d4c75800f61e5d75c1659ba201b6c0c7ead3070 | affected | git | 359e54a93ab43d32ee1bff3c2f9f10cb9f6b6e79 | Unavailable | None listed |
| 7626b9fed53092aa2147978070e610ecb61af844 | affected | git | Unavailable | Unavailable | None listed |
| fe80658c08e3001c80c5533cd41abfbb0e0e28fd | affected | git | Unavailable | Unavailable | None listed |
| 4.19.296 | affected | semver | 4.19.308 | Unavailable | None listed |
| 5.4.258 | affected | semver | 5.4.270 | Unavailable | None listed |
| 5.10.198 | affected | semver | 5.10.211 | Unavailable | None listed |
| 5.15.135 | affected | semver | 5.15.150 | Unavailable | None listed |
| 6.1.57 | affected | semver | 6.1.80 | Unavailable | None listed |
| 4.14.327 | affected | semver | 4.15 | Unavailable | None listed |
| 6.5.7 | affected | semver | 6.6 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.6 | Unavailable | None listed |
| 4.19.308 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.270 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.211 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.150 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.80 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.19 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.7.7 | unaffected | semver | Unavailable | 6.7.* | None listed |
| 6.8 | unaffected | original_commit_for_fix | Unavailable | * | None listed |