CVE-2024-56662
Description
In the Linux kernel, the following vulnerability has been resolved:
acpi: nfit: vmalloc-out-of-bounds Read in acpi_nfit_ctl
Fix an issue detected by syzbot with KASAN:
BUG: KASAN: vmalloc-out-of-bounds in cmd_to_func drivers/acpi/nfit/
core.c:416 [inline]
BUG: KASAN: vmalloc-out-of-bounds in acpi_nfit_ctl+0x20e8/0x24a0
drivers/acpi/nfit/core.c:459
The issue occurs in cmd_to_func when the call_pkg->nd_reserved2
array is accessed without verifying that call_pkg points to a buffer
that is appropriately sized as a struct nd_cmd_pkg. This can lead
to out-of-bounds access and undefined behavior if the buffer does not
have sufficient space.
To address this, a check was added in acpi_nfit_ctl() to ensure that
buf is not NULL and that buf_len is less than sizeof(*call_pkg)
before accessing it. This ensures safe access to the members of
call_pkg, including the nd_reserved2 array.
EPSS (Exploit Prediction Scoring System)
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score Trend (Last 90 Days)
Out-of-bounds Read
DraftCommon Consequences
Applicable Platforms
Linux Kernel by Linux
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel by Linux
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel by Linux
cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*
Linux Kernel by Linux
cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*
Linux Kernel by Linux
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel by Linux
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel by Linux
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel by Linux
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Linux Kernel by Linux
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*