[SRU Bionic, Focal, Jammy, Kinetic 0/1] CVE-2023-26545

[Cengiz Can]

[Impact]
In the Linux kernel before 6.1.13, there is a double free in
net/mpls/af_mpls.c upon an allocation failure (for registering the sysctl table
under a new location) during the renaming of a device.

[Fix]
Clean cherry-pick from upstream.

[Test case]
Boot and basic frame TX/RX tested using Etherate (MT) MPLS Testing Tool.

[Potential regression]
Low. Only empties a pointer and adds a null check for it.

Jakub Kicinski (1):
  net: mpls: fix stale pointer if allocation fails during device rename

 net/mpls/af_mpls.c | 4 ++++
 1 file changed, 4 insertions(+)

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2.37.2