CVE-2025-38514rxrpc: Fix oops due to non-existence of prealloc backlog struct
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: rxrpc: Fix oops due to non-existence of prealloc backlog struct If an AF_RXRPC service socket is opened and bound, but calls are preallocated, then rxrpc_alloc_incoming_call() will oops because the rxrpc_backlog struct doesn't get allocated until the first preallocation is made. Fix this by returning NULL from rxrpc_alloc_incoming_call() if there is no backlog struct. This will cause the incoming call to be aborted.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- 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
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 248f219cb8bcbfbd7f132752d44afa2df7c241d1 before bf0ca6a1bc4fb904b598137c6718785a107e3adf; from 248f219cb8bcbfbd7f132752d44afa2df7c241d1 before f7afb3ff01c42c49e8a143cdce400b95844bb506; from 248f219cb8bcbfbd7f132752d44afa2df7c241d1 before f5e72b7824d08c206ce106d30cb37c4642900ccc; 248f219cb8bcbfbd7f132752d44afa2df7c241d1 builds before 0eef29385d715d4c7fd707b18d4a9b76c76dd5e6; from 248f219cb8bcbfbd7f132752d44afa2df7c241d1 before efc1b2b7c1a308b60df8f36bc2d7ce16d3999364; from 248f219cb8bcbfbd7f132752d44afa2df7c241d1 before d1ff5f9d2c5405681457262e23c720b08977c11f; 248f219cb8bcbfbd7f132752d44afa2df7c241d1 builds before 2c2e9ebeb036f9b1b09325ec5cfdfe0e78f357c3; from 248f219cb8bcbfbd7f132752d44afa2df7c241d1 before 880a88f318cf1d2a0f4c0a7ff7b07e2062b434a4 | CNA record |
linux linux_kernel linux:linux_kernel | from 4.9 before 5.4.296; from 5.5 before 5.10.240; from 5.11 before 5.15.189; from 5.16 before 6.1.146; from 6.2 before 6.6.99; from 6.7 before 6.12.39; from 6.13 before 6.15.7; 6.16; and 4 more ranges | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://git.kernel.org/stable/c/bf0ca6a1bc4fb904b598137c6718785a107e3adfpatch
- https://git.kernel.org/stable/c/f7afb3ff01c42c49e8a143cdce400b95844bb506patch
- https://git.kernel.org/stable/c/f5e72b7824d08c206ce106d30cb37c4642900cccpatch
- https://git.kernel.org/stable/c/0eef29385d715d4c7fd707b18d4a9b76c76dd5e6patch
- https://git.kernel.org/stable/c/efc1b2b7c1a308b60df8f36bc2d7ce16d3999364patch
- https://git.kernel.org/stable/c/d1ff5f9d2c5405681457262e23c720b08977c11fpatch
- https://git.kernel.org/stable/c/2c2e9ebeb036f9b1b09325ec5cfdfe0e78f357c3patch
- https://git.kernel.org/stable/c/880a88f318cf1d2a0f4c0a7ff7b07e2062b434a4patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlthird-party-advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlthird-party-advisory
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.