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Juergen Gross cdba7e8fa3 objtool/x86: allow syscall instruction 
commit dda014ba59331dee4f3b773a020e109932f4bd24 upstream.

The syscall instruction is used in Xen PV mode for doing hypercalls.
Allow syscall to be used in the kernel in case it is tagged with an
unwind hint for objtool.

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>
Co-developed-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-01-02 17:01:18 +01:00
..
accounting Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
arch x86/insn: Fix PUSH instruction in x86 instruction decoder opcode map 2024-11-19 12:26:59 +01:00
bootconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bpf bpf: Fix potential integer overflow in resolve_btfids 2024-11-19 12:27:10 +01:00
build Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cgroup Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
crypto Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
debugging Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
edid Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
firewire Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
firmware Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gpio Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hv Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
iio Revert "tools/iio: Add memory allocation failure check for trigger_name" 2024-11-24 00:22:58 +01:00
include tools: move alignment-related macros to new <linux/align.h> 2024-11-23 23:20:50 +01:00
io_uring Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kvm/kvm_stat Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
laptop Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
leds Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lib Revert "libbpf: Add NULL checks to bpf_object__{prev_map,next_map}" 2024-11-24 00:23:40 +01:00
memory-model tools/memory-model: Fix bug in lock.cat 2024-11-23 23:20:13 +01:00
objtool objtool/x86: allow syscall instruction 2025-01-02 17:01:18 +01:00
pci Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pcmcia Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
perf perf trace: Avoid garbage when not printing a syscall's arguments 2024-12-17 13:24:12 +01:00
power tools/power turbostat: Fix Bzy_MHz documentation typo 2024-11-19 11:32:44 +01:00
scripts Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
spi Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
testing selftests: mlxsw: sharedbuffer: Remove duplicate test cases 2025-01-02 17:00:50 +01:00
thermal/tmon Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
time Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
usb usbip: tools: Fix detach_port() invalid port error path 2024-11-23 23:22:04 +01:00
virtio Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wmi Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00