Linux: >> Linux Kernel >> 3.18.42 Security Vulnerabilities
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: added NULL check at start of dc_validate_stream
[Why]
prevent invalid memory access
[How]
check if dc and stream are NULL
CVSS Score
5.5
EPSS Score
0.0
Published
2024-09-27
In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: Check debug trap enable before write dbg_ev_file
In interrupt context, write dbg_ev_file will be run by work queue. It
will cause write dbg_ev_file execution after debug_trap_disable, which
will cause NULL pointer access.
v2: cancel work "debug_event_workarea" before set dbg_ev_file as NULL.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-09-27
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Add array index check for hdcp ddc access
[Why]
Coverity reports OVERRUN warning. Do not check if array
index valid.
[How]
Check msg_id valid and valid array index.
CVSS Score
7.8
EPSS Score
0.0
Published
2024-09-27
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: fix the waring dereferencing hive
Check the amdgpu_hive_info *hive that maybe is NULL.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-09-27
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: Fix the warning division or modulo by zero
Checks the partition mode and returns an error for an invalid mode.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-09-27
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/amdgpu: Check tbo resource pointer
Validate tbo resource pointer, skip if NULL
CVSS Score
5.5
EPSS Score
0.0
Published
2024-09-27
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Add missing NULL pointer check within dpcd_extend_address_range
[Why & How]
ASSERT if return NULL from kcalloc.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-09-27
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Check BIOS images before it is used
BIOS images may fail to load and null checks are added before they are
used.
This fixes 6 NULL_RETURNS issues reported by Coverity.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-09-27
In the Linux kernel, the following vulnerability has been resolved:
media: vivid: fix compose size exceed boundary
syzkaller found a bug:
BUG: unable to handle page fault for address: ffffc9000a3b1000
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 100000067 P4D 100000067 PUD 10015f067 PMD 1121ca067 PTE 0
Oops: 0002 [#1] PREEMPT SMP
CPU: 0 PID: 23489 Comm: vivid-000-vid-c Not tainted 6.1.0-rc1+ #512
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
RIP: 0010:memcpy_erms+0x6/0x10
[...]
Call Trace:
<TASK>
? tpg_fill_plane_buffer+0x856/0x15b0
vivid_fillbuff+0x8ac/0x1110
vivid_thread_vid_cap_tick+0x361/0xc90
vivid_thread_vid_cap+0x21a/0x3a0
kthread+0x143/0x180
ret_from_fork+0x1f/0x30
</TASK>
This is because we forget to check boundary after adjust compose->height
int V4L2_SEL_TGT_CROP case. Add v4l2_rect_map_inside() to fix this problem
for this case.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-09-23
In the Linux kernel, the following vulnerability has been resolved:
x86/tdx: Fix data leak in mmio_read()
The mmio_read() function makes a TDVMCALL to retrieve MMIO data for an
address from the VMM.
Sean noticed that mmio_read() unintentionally exposes the value of an
initialized variable (val) on the stack to the VMM.
This variable is only needed as an output value. It did not need to be
passed to the VMM in the first place.
Do not send the original value of *val to the VMM.
[ dhansen: clarify what 'val' is used for. ]
CVSS Score
3.3
EPSS Score
0.0
Published
2024-09-18