CVE-2025-71084RDMA/cm: Fix leaking the multicast GID table reference
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: RDMA/cm: Fix leaking the multicast GID table reference If the CM ID is destroyed while the CM event for multicast creating is still queued the cancel_work_sync() will prevent the work from running which also prevents destroying the ah_attr. This leaks a refcount and triggers a WARN: GID entry ref leak for dev syz1 index 2 ref=573 WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline] WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886 Destroy the ah_attr after canceling the work, it is safe to call this twice.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-401
- 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
- Modified
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 60d613b39e8d0c9f3b526e9c96445422b4562d76 before d5ce588a9552878859a4d44b70b724216c188a5f; from fe454dc31e84f8c14cb8942fcb61666c9f40745b before abf38398724ecc888f62c678d288da40d11878af; from fe454dc31e84f8c14cb8942fcb61666c9f40745b before ab668a58c4a2ccb6d54add7a76f2f955d15d0196; from fe454dc31e84f8c14cb8942fcb61666c9f40745b before c0acdee513239e1d6e1b490f56be0e6837dfd162; from fe454dc31e84f8c14cb8942fcb61666c9f40745b before 5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3; from fe454dc31e84f8c14cb8942fcb61666c9f40745b before 3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5; from fe454dc31e84f8c14cb8942fcb61666c9f40745b before 57f3cb6c84159d12ba343574df2115fb18dd83ca; a3262b3884dd67b4c5632ce7cdf9cff9d1a575d4; and 2 more ranges | CNA record |
linux linux_kernel linux:linux_kernel | from 5.10.20 before 5.10.248; from 5.11.3 before 5.12; from 5.12.1 before 5.15.198; from 5.16 before 6.1.160; from 6.2 before 6.6.120; from 6.7 before 6.12.64; from 6.13 before 6.18.4; 5.12; and 8 more ranges | NVD |
References
- https://git.kernel.org/stable/c/d5ce588a9552878859a4d44b70b724216c188a5fpatch
- https://git.kernel.org/stable/c/abf38398724ecc888f62c678d288da40d11878afpatch
- https://git.kernel.org/stable/c/ab668a58c4a2ccb6d54add7a76f2f955d15d0196patch
- https://git.kernel.org/stable/c/c0acdee513239e1d6e1b490f56be0e6837dfd162patch
- https://git.kernel.org/stable/c/5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3patch
- https://git.kernel.org/stable/c/3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5patch
- https://git.kernel.org/stable/c/57f3cb6c84159d12ba343574df2115fb18dd83capatch
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.