[SRU][Jammy-OEM-5.17/OEM-6.0][PATCH 0/1] CVE-2023-0458

Yuxuan Luo yuxuan.luo at canonical.com
Mon Jul 31 14:50:02 UTC 2023


[Impact]
kernel/sys.c contains a spectre-v1 vuneralbility due to lack of spec barrier,
resulting in kernel memory info leak.

[Backport]
Clean cherry pick.

[Test]
Compile and boot tested.

[Potential Regression]
Since the new added line merely truncate the variable to the given range after
the value check, it only functions as a spec barrier; therefore, expecting low
regression potential.

Greg Kroah-Hartman (1):
  prlimit: do_prlimit needs to have a speculation check

 kernel/sys.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.34.1




More information about the kernel-team mailing list