CVE-2022-48945

media: vivid: fix compose size exceed boundary

State: Published
Severity: 7.8 High
Published: Sep 23, 2024
Updated: Aug 5, 2026
Reserved: Aug 22, 2024

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 8c0ee15d9a102c732d0745566d254040085d5663Affected ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 5edc3604151919da8da0fb092b71d7dce07d848aAffected ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 9c7fba9503b826f0c061d136f8f0c9f953ed18b9Affected ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 54f259906039dbfe46c550011409fa16f72370f6Affected ef834f7836ec0502f49f20bbc42f1240577a9c83 to before f9d19f3a044ca651b0be52a4bf951ffe74259b9fAffected ef834f7836ec0502f49f20bbc42f1240577a9c83 to before ab54081a2843aefb837812fac5488cc8f1696142Affected ef834f7836ec0502f49f20bbc42f1240577a9c83 to before ccb5392c4fea0e7d9f7ab35567e839d74cb3998bAffected ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 2f558c5208b0f70c8140e08ce09fcc84da48e789Affected ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 94a7ad9283464b75b12516c5512541d467cefcf8Affected
LinuxLinux	3.18Affected before 3.18Not affected 4.9.337 through 4.9.Not affected 4.14.303 through 4.14.Not affected 4.19.270 through 4.19.Not affected 5.4.229 through 5.4.Not affected 5.10.163 through 5.10.Not affected 5.15.86 through 5.15.Not affected 6.0.16 through 6.0.Not affected 6.1.2 through 6.1.Not affected 6.2 and laterNot affected

Product

Versions

LinuxLinux

ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 8c0ee15d9a102c732d0745566d254040085d5663Affected
ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 5edc3604151919da8da0fb092b71d7dce07d848aAffected
ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 9c7fba9503b826f0c061d136f8f0c9f953ed18b9Affected
ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 54f259906039dbfe46c550011409fa16f72370f6Affected
ef834f7836ec0502f49f20bbc42f1240577a9c83 to before f9d19f3a044ca651b0be52a4bf951ffe74259b9fAffected
ef834f7836ec0502f49f20bbc42f1240577a9c83 to before ab54081a2843aefb837812fac5488cc8f1696142Affected
ef834f7836ec0502f49f20bbc42f1240577a9c83 to before ccb5392c4fea0e7d9f7ab35567e839d74cb3998bAffected
ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 2f558c5208b0f70c8140e08ce09fcc84da48e789Affected
ef834f7836ec0502f49f20bbc42f1240577a9c83 to before 94a7ad9283464b75b12516c5512541d467cefcf8Affected

LinuxLinux

3.18Affected
before 3.18Not affected
4.9.337 through 4.9.*Not affected
4.14.303 through 4.14.*Not affected
4.19.270 through 4.19.*Not affected
5.4.229 through 5.4.*Not affected
5.10.163 through 5.10.*Not affected
5.15.86 through 5.15.*Not affected
6.0.16 through 6.0.*Not affected
6.1.2 through 6.1.*Not affected
6.2 and laterNot affected

References

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