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CVE-2022-48945

media: vivid: fix compose size exceed boundary

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.

Timeline

  1. ID reserved

    By Linux

  2. · 32 days later

    Published

  3. · 23 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2022-48945, by who scored it
Scored byCVSSScoreVector
LinuxCNA (assigner)3.1High7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Modified3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.22% · top 88% of all CVEs (12 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Affected products

  • Linux · Linux

    • affected ef834f7836ec0502f49f20bbc42f1240577a9c83 – < 8c0ee15d9a102c732d0745566d254040085d5663
    • affected ef834f7836ec0502f49f20bbc42f1240577a9c83 – < 5edc3604151919da8da0fb092b71d7dce07d848a
    • affected ef834f7836ec0502f49f20bbc42f1240577a9c83 – < 9c7fba9503b826f0c061d136f8f0c9f953ed18b9
    • affected ef834f7836ec0502f49f20bbc42f1240577a9c83 – < 54f259906039dbfe46c550011409fa16f72370f6
    • affected ef834f7836ec0502f49f20bbc42f1240577a9c83 – < f9d19f3a044ca651b0be52a4bf951ffe74259b9f
    • affected ef834f7836ec0502f49f20bbc42f1240577a9c83 – < ab54081a2843aefb837812fac5488cc8f1696142
    • affected ef834f7836ec0502f49f20bbc42f1240577a9c83 – < ccb5392c4fea0e7d9f7ab35567e839d74cb3998b
    • affected ef834f7836ec0502f49f20bbc42f1240577a9c83 – < 2f558c5208b0f70c8140e08ce09fcc84da48e789
    • affected ef834f7836ec0502f49f20bbc42f1240577a9c83 – < 94a7ad9283464b75b12516c5512541d467cefcf8
  • Linux · Linux

    • affected 3.18
    • unaffected < 3.18
    • unaffected 4.9.337 – ≤ 4.9.*
    • unaffected 4.14.303 – ≤ 4.14.*
    • unaffected 4.19.270 – ≤ 4.19.*
    • unaffected 5.4.229 – ≤ 5.4.*
    • unaffected 5.10.163 – ≤ 5.10.*
    • unaffected 5.15.86 – ≤ 5.15.*
    • unaffected 6.0.16 – ≤ 6.0.*
    • unaffected 6.1.2 – ≤ 6.1.*
    • unaffected 6.2 – ≤ *

References

References9

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .