rxrpc: Fix oops due to non-existence of prealloc backlog struct
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.4%
exploitation probability
0.4%top 72% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/0eef29385d715d4c7fd707b18d4a9b76c76dd5e6https://git.kernel.org/stable/c/2c2e9ebeb036f9b1b09325ec5cfdfe0e78f357c3https://git.kernel.org/stable/c/880a88f318cf1d2a0f4c0a7ff7b07e2062b434a4https://git.kernel.org/stable/c/bf0ca6a1bc4fb904b598137c6718785a107e3adfhttps://git.kernel.org/stable/c/d1ff5f9d2c5405681457262e23c720b08977c11fhttps://git.kernel.org/stable/c/efc1b2b7c1a308b60df8f36bc2d7ce16d3999364https://git.kernel.org/stable/c/f5e72b7824d08c206ce106d30cb37c4642900ccchttps://git.kernel.org/stable/c/f7afb3ff01c42c49e8a143cdce400b95844bb506https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html