CVE-2024-40920
In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix suspicious rcu usage in br_mst_set_state I converted br_mst_set_state to RCU to avoid a vlan use-after-free but forgot to change the vlan group dereference helper.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: fix suspicious rcu usage in br_mst_set_state I converted br_mst_set_state to RCU to avoid a vlan use-after-free but forgot to change the vlan group dereference helper. Switch to vlan group RCU deref helper to fix the suspicious rcu usage warning.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.42% probability · 35th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/406bfc04b01ee47e4c626f77ecc7d9f85135b166Patch
- https://git.kernel.org/stable/c/546ceb1dfdac866648ec959cbc71d9525bd73462Patch
- https://git.kernel.org/stable/c/7caefa2771722e65496d85b62e1dc4442b7d1345Patch
- https://git.kernel.org/stable/c/caaa2129784a04dcade0ea92c12e6ff90bbd23d8Patch
- https://git.kernel.org/stable/c/406bfc04b01ee47e4c626f77ecc7d9f85135b166Patch
- https://git.kernel.org/stable/c/546ceb1dfdac866648ec959cbc71d9525bd73462Patch
- https://git.kernel.org/stable/c/7caefa2771722e65496d85b62e1dc4442b7d1345Patch
- https://git.kernel.org/stable/c/caaa2129784a04dcade0ea92c12e6ff90bbd23d8Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.