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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/2f558c5208b0f70c8140e08ce09fcc84da48e789 cve-icon cve-icon
https://git.kernel.org/stable/c/54f259906039dbfe46c550011409fa16f72370f6 cve-icon cve-icon
https://git.kernel.org/stable/c/5edc3604151919da8da0fb092b71d7dce07d848a cve-icon cve-icon
https://git.kernel.org/stable/c/8c0ee15d9a102c732d0745566d254040085d5663 cve-icon cve-icon
https://git.kernel.org/stable/c/94a7ad9283464b75b12516c5512541d467cefcf8 cve-icon cve-icon
https://git.kernel.org/stable/c/9c7fba9503b826f0c061d136f8f0c9f953ed18b9 cve-icon cve-icon
https://git.kernel.org/stable/c/ab54081a2843aefb837812fac5488cc8f1696142 cve-icon cve-icon
https://git.kernel.org/stable/c/ccb5392c4fea0e7d9f7ab35567e839d74cb3998b cve-icon cve-icon
https://git.kernel.org/stable/c/f9d19f3a044ca651b0be52a4bf951ffe74259b9f cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024092346-CVE-2022-48945-90da@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-48945 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-48945 cve-icon
History

Sun, 29 Sep 2024 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 23 Sep 2024 13:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Mon, 23 Sep 2024 10:00:00 +0000

Type Values Removed Values Added
Description 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.
Title media: vivid: fix compose size exceed boundary
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-09-23T09:46:40.851Z

Updated: 2024-09-29T14:21:31.001Z

Reserved: 2024-08-22T01:27:53.624Z

Link: CVE-2022-48945

cve-icon Vulnrichment

Updated: 2024-09-29T14:21:21.367Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-09-23T10:15:02.467

Modified: 2024-09-26T13:32:55.343

Link: CVE-2022-48945

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-09-23T00:00:00Z

Links: CVE-2022-48945 - Bugzilla