CVE-2022-48945

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.

Reserved 2024-08-22 | Published 2024-09-23 | Updated 2024-11-04 | Assigner Linux

Product status

Default status
unaffected

ef834f7836ec before 8c0ee15d9a10
affected

ef834f7836ec before 5edc36041519
affected

ef834f7836ec before 9c7fba9503b8
affected

ef834f7836ec before 54f259906039
affected

ef834f7836ec before f9d19f3a044c
affected

ef834f7836ec before ab54081a2843
affected

ef834f7836ec before ccb5392c4fea
affected

ef834f7836ec before 2f558c5208b0
affected

ef834f7836ec before 94a7ad928346
affected

Default status
affected

3.18
affected

Any version before 3.18
unaffected

4.9.337
unaffected

4.14.303
unaffected

4.19.270
unaffected

5.4.229
unaffected

5.10.163
unaffected

5.15.86
unaffected

6.0.16
unaffected

6.1.2
unaffected

6.2
unaffected

References

git.kernel.org/...c/8c0ee15d9a102c732d0745566d254040085d5663

git.kernel.org/...c/5edc3604151919da8da0fb092b71d7dce07d848a

git.kernel.org/...c/9c7fba9503b826f0c061d136f8f0c9f953ed18b9

git.kernel.org/...c/54f259906039dbfe46c550011409fa16f72370f6

git.kernel.org/...c/f9d19f3a044ca651b0be52a4bf951ffe74259b9f

git.kernel.org/...c/ab54081a2843aefb837812fac5488cc8f1696142

git.kernel.org/...c/ccb5392c4fea0e7d9f7ab35567e839d74cb3998b

git.kernel.org/...c/2f558c5208b0f70c8140e08ce09fcc84da48e789

git.kernel.org/...c/94a7ad9283464b75b12516c5512541d467cefcf8

cve.org (CVE-2022-48945)

nvd.nist.gov (CVE-2022-48945)

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