ghsa-g3vj-v55c-g2x7
Vulnerability from github
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: ? 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
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.
{
"affected": [],
"aliases": [
"CVE-2022-48945"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-23T10:15:02Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vivid: fix compose size exceed boundary\n\nsyzkaller found a bug:\n\n BUG: unable to handle page fault for address: ffffc9000a3b1000\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 100000067 P4D 100000067 PUD 10015f067 PMD 1121ca067 PTE 0\n Oops: 0002 [#1] PREEMPT SMP\n CPU: 0 PID: 23489 Comm: vivid-000-vid-c Not tainted 6.1.0-rc1+ #512\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n RIP: 0010:memcpy_erms+0x6/0x10\n[...]\n Call Trace:\n \u003cTASK\u003e\n ? tpg_fill_plane_buffer+0x856/0x15b0\n vivid_fillbuff+0x8ac/0x1110\n vivid_thread_vid_cap_tick+0x361/0xc90\n vivid_thread_vid_cap+0x21a/0x3a0\n kthread+0x143/0x180\n ret_from_fork+0x1f/0x30\n \u003c/TASK\u003e\n\nThis is because we forget to check boundary after adjust compose-\u003eheight\nint V4L2_SEL_TGT_CROP case. Add v4l2_rect_map_inside() to fix this problem\nfor this case.",
"id": "GHSA-g3vj-v55c-g2x7",
"modified": "2024-09-23T12:31:09Z",
"published": "2024-09-23T12:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48945"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2f558c5208b0f70c8140e08ce09fcc84da48e789"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/54f259906039dbfe46c550011409fa16f72370f6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5edc3604151919da8da0fb092b71d7dce07d848a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8c0ee15d9a102c732d0745566d254040085d5663"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/94a7ad9283464b75b12516c5512541d467cefcf8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9c7fba9503b826f0c061d136f8f0c9f953ed18b9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ab54081a2843aefb837812fac5488cc8f1696142"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ccb5392c4fea0e7d9f7ab35567e839d74cb3998b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f9d19f3a044ca651b0be52a4bf951ffe74259b9f"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
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