summaryrefslogtreecommitdiff
path: root/tools/perf/scripts/python/check-perf-trace.py
diff options
context:
space:
mode:
authorHaoyu Li <lihaoyu499@gmail.com>2025-01-30 14:58:11 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-02-20 17:20:34 +0300
commit819cec1dc47cdeac8f5dd6ba81c1dbee2a68c3bb (patch)
treefe80b8d043b81365f7bb81e693423ccf3c963805 /tools/perf/scripts/python/check-perf-trace.py
parente77aff5528a183462714f750e45add6cc71e276a (diff)
downloadlinux-819cec1dc47cdeac8f5dd6ba81c1dbee2a68c3bb.tar.xz
drivers: virt: acrn: hsm: Use kzalloc to avoid info leak in pmcmd_ioctl
In the "pmcmd_ioctl" function, three memory objects allocated by kmalloc are initialized by "hcall_get_cpu_state", which are then copied to user space. The initializer is indeed implemented in "acrn_hypercall2" (arch/x86/include/asm/acrn.h). There is a risk of information leakage due to uninitialized bytes. Fixes: 3d679d5aec64 ("virt: acrn: Introduce interfaces to query C-states and P-states allowed by hypervisor") Signed-off-by: Haoyu Li <lihaoyu499@gmail.com> Cc: stable <stable@kernel.org> Acked-by: Fei Li <fei1.li@intel.com> Link: https://lore.kernel.org/r/20250130115811.92424-1-lihaoyu499@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions