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| author | Juergen Gross <jgross@suse.com> | 2024-10-16 11:40:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-19 20:13:23 +0300 |
| commit | f7c3fdad0a474062d566aae3289d490d7e702d30 (patch) | |
| tree | 0a64c3df1c38d4b2ff1ce3323191156d68304267 /net/unix/sysctl_net_unix.c | |
| parent | fa0f23a60ea5c20e9e41bd2cf8bc049017c4f305 (diff) | |
| download | linux-f7c3fdad0a474062d566aae3289d490d7e702d30.tar.xz | |
x86/xen: don't do PV iret hypercall through hypercall page
commit a2796dff62d6c6bfc5fbebdf2bee0d5ac0438906 upstream.
Instead of jumping to the Xen hypercall page for doing the iret
hypercall, directly code the required sequence in xen-asm.S.
This is done in preparation of no longer using hypercall page at all,
as it has shown to cause problems with speculation mitigations.
This is part of XSA-466 / CVE-2024-53241.
Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/unix/sysctl_net_unix.c')
0 files changed, 0 insertions, 0 deletions