[SRU][Bionic, Focal, Jammy, Kinetic, OEM-5.17, OEM-6.0, OEM-6.1][PATCH v2 0/1] CVE-2023-1859

[John Cabaj]

[Impact]
* A use-after-free vulnerability could exist in xen/9pfs, whereupon after removal of a xen_9pfs device, an attempt to service a response could access a struct that has been freed.
* Perform requisite clean-up upon removal so further requests cannot be serviced.

[Fix]
* Clean cherry-picks for all affected kernels

[Test Case]
* Compile tested
* Boot tested

[Potential regression]
* Low risk. Potentially could take longer to remove xen_9pfs device as cancel waits for work to finish.

-v2:
* Removing oem-5.14 and adding CVE # to patch

Zheng Wang (1):
  9p/xen : Fix use after free bug in xen_9pfs_front_remove due to race
    condition

 net/9p/trans_xen.c | 4 ++++
 1 file changed, 4 insertions(+)

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2.34.1