Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2022-48945

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
23/09/2024
Last modified:
08/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> media: vivid: fix compose size exceed boundary<br /> <br /> syzkaller found a bug:<br /> <br /> BUG: unable to handle page fault for address: ffffc9000a3b1000<br /> #PF: supervisor write access in kernel mode<br /> #PF: error_code(0x0002) - not-present page<br /> PGD 100000067 P4D 100000067 PUD 10015f067 PMD 1121ca067 PTE 0<br /> Oops: 0002 [#1] PREEMPT SMP<br /> CPU: 0 PID: 23489 Comm: vivid-000-vid-c Not tainted 6.1.0-rc1+ #512<br /> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014<br /> RIP: 0010:memcpy_erms+0x6/0x10<br /> [...]<br /> Call Trace:<br /> <br /> ? tpg_fill_plane_buffer+0x856/0x15b0<br /> vivid_fillbuff+0x8ac/0x1110<br /> vivid_thread_vid_cap_tick+0x361/0xc90<br /> vivid_thread_vid_cap+0x21a/0x3a0<br /> kthread+0x143/0x180<br /> ret_from_fork+0x1f/0x30<br /> <br /> <br /> This is because we forget to check boundary after adjust compose-&gt;height<br /> int V4L2_SEL_TGT_CROP case. Add v4l2_rect_map_inside() to fix this problem<br /> for this case.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.18 (including) 4.9.337 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.10 (including) 4.14.303 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.15 (including) 4.19.270 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.20 (including) 5.4.229 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.5 (including) 5.10.163 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.86 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.0.16 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.1 (including) 6.1.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools