CVEvulnerability
CVE-2026-97435
- Status
- Received
- Published
- 2026-09-24
- Last modified
- 2026-10-03
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
net: dsa: sja1105: flower: reject cross-chip redirect
dsa_port_from_netdev() may return a valid port from a different switch
chip. Programming another chip's port index into the local hardware
causes redirection to the wrong port, or an out-of-bounds access if the
index exceeds the local chip's port count.
Apply a minimal fix that adds a check to catch this case and adjusts the
extack message. When cls->common.skip_sw is not set, the operation could
instead redirect to the upstream port and let the software or upstream
switch(es) handle the forward, but that is not addressed here.
References
- https://git.kernel.org/stable/c/277f8611e017d3ff1ab06af58a6c538b55da1cc8 git.kernel.org
- https://git.kernel.org/stable/c/6bf5158af52a5293e9160d8f2992c629ca14aa7d git.kernel.org
- https://git.kernel.org/stable/c/abd7511e12b231798332afa04ed9bee9e84f9445 git.kernel.org
- https://git.kernel.org/stable/c/c999cc39775381b68ed66eae57c1425452672c0f git.kernel.org
- https://git.kernel.org/stable/c/cfa5274a5dc2a23b957da5dc806d2ac0c7a66af0 git.kernel.org
- https://git.kernel.org/stable/c/d0e54098c072b6064cdcf8039075ada8b88583da git.kernel.org
- https://git.kernel.org/stable/c/eb177aa00c392de3dc530c34f173a962216f82dd git.kernel.org