CVE-2026-72413sctp: fix err_chunk memory leaks in INIT handling
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: sctp: fix err_chunk memory leaks in INIT handling When sctp_verify_init() encounters unrecognized parameters, it allocates an err_chunk to report them. However, this chunk is leaked in several code paths: 1. In sctp_sf_do_5_1B_init(), if security_sctp_assoc_request() fails after sctp_verify_init() has populated err_chunk, the function returns immediately without freeing it. 2. In sctp_sf_do_unexpected_init(), the same leak occurs on the security_sctp_assoc_request() failure path. 3. In sctp_sf_do_unexpected_init(), on the success path after copying unrecognized parameters to the INIT-ACK, the function returns without freeing err_chunk, unlike sctp_sf_do_5_1B_init() which properly frees it. Fix all three leaks by adding sctp_chunk_free(err_chunk) calls before returning in the error paths and on the success path in sctp_sf_do_unexpected_init().
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a8e6a839c0e7ca1da752faaab51e2eafb17483a4; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 43ddbcdc0ed74a8fba4aff5e623ace8135411b93; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 6acedac7a14af71cfe25024ead28e16a070899e4; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 builds before 1cae40d423a2042c7970f29c00028951ec20db8a; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 94f55994e19e8f0676990b9d5015b58ab6a97e00; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 9f58a0a4d6c2ed5d341bba64f058f15d1b0c36f2 | CNA record |
References
- https://git.kernel.org/stable/c/a8e6a839c0e7ca1da752faaab51e2eafb17483a4
- https://git.kernel.org/stable/c/43ddbcdc0ed74a8fba4aff5e623ace8135411b93
- https://git.kernel.org/stable/c/6acedac7a14af71cfe25024ead28e16a070899e4
- https://git.kernel.org/stable/c/1cae40d423a2042c7970f29c00028951ec20db8a
- https://git.kernel.org/stable/c/94f55994e19e8f0676990b9d5015b58ab6a97e00
- https://git.kernel.org/stable/c/9f58a0a4d6c2ed5d341bba64f058f15d1b0c36f2
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.