CVE-2022-48945 (GCVE-0-2022-48945)
Vulnerability from cvelistv5 – Published: 2024-09-23 09:46 – Updated: 2026-08-05 08:53
VLAI
EPSS
VEX
Title
media: vivid: fix compose size exceed boundary
Summary
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.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-29 14:21 UTC
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
ef834f7836ec0502f49f20bbc42f1240577a9c83 , < 8c0ee15d9a102c732d0745566d254040085d5663
(git)
Affected: ef834f7836ec0502f49f20bbc42f1240577a9c83 , < 5edc3604151919da8da0fb092b71d7dce07d848a (git) Affected: ef834f7836ec0502f49f20bbc42f1240577a9c83 , < 9c7fba9503b826f0c061d136f8f0c9f953ed18b9 (git) Affected: ef834f7836ec0502f49f20bbc42f1240577a9c83 , < 54f259906039dbfe46c550011409fa16f72370f6 (git) Affected: ef834f7836ec0502f49f20bbc42f1240577a9c83 , < f9d19f3a044ca651b0be52a4bf951ffe74259b9f (git) Affected: ef834f7836ec0502f49f20bbc42f1240577a9c83 , < ab54081a2843aefb837812fac5488cc8f1696142 (git) Affected: ef834f7836ec0502f49f20bbc42f1240577a9c83 , < ccb5392c4fea0e7d9f7ab35567e839d74cb3998b (git) Affected: ef834f7836ec0502f49f20bbc42f1240577a9c83 , < 2f558c5208b0f70c8140e08ce09fcc84da48e789 (git) Affected: ef834f7836ec0502f49f20bbc42f1240577a9c83 , < 94a7ad9283464b75b12516c5512541d467cefcf8 (git) |
guessed | |
| Linux | Linux |
Affected:
3.18
Unaffected: 0 , < 3.18 (semver) Unaffected: 4.9.337 , ≤ 4.9.* (semver) Unaffected: 4.14.303 , ≤ 4.14.* (semver) Unaffected: 4.19.270 , ≤ 4.19.* (semver) Unaffected: 5.4.229 , ≤ 5.4.* (semver) Unaffected: 5.10.163 , ≤ 5.10.* (semver) Unaffected: 5.15.86 , ≤ 5.15.* (semver) Unaffected: 6.0.16 , ≤ 6.0.* (semver) Unaffected: 6.1.2 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix) |
guessed |
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"value": "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."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: vivid: fix compose size above bound syzkaller encontr\u00f3 un error: BUG: no se puede manejar la falla de p\u00e1gina para la direcci\u00f3n: ffffc9000a3b1000 #PF: acceso de escritura del supervisor en modo kernel #PF: error_code(0x0002) - p\u00e1gina no presente PGD 100000067 P4D 100000067 PUD 10015f067 PMD 1121ca067 PTE 0 Oops: 0002 [#1] PREEMPT SMP CPU: 0 PID: 23489 Comm: vivid-000-vid-c No contaminado 6.1.0-rc1+ #512 Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 01/04/2014 RIP: 0010:memcpy_erms+0x6/0x10 [...] Seguimiento de llamadas: ? 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 Esto se debe a que olvidamos verificar el l\u00edmite despu\u00e9s de ajustar el caso V4L2_SEL_TGT_CROP en el int compose-\u0026gt;height. Agregue v4l2_rect_map_inside() para solucionar este problema en este caso."
}
],
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"vulnStatus": "Modified",
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"value": "NVD-CWE-noinfo"
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"redhat_vex": {
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"current_release_date": "2026-08-04T19:47:34+00:00",
"cve": "CVE-2022-48945",
"id": "CVE-2022-48945",
"initial_release_date": "2022-01-01T00:00:00+00:00",
"product_status:known_not_affected": "198",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: media: vivid: fix compose size exceed boundary",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-48945.json",
"version": "3"
},
"vulnrichment": {
"containers": {
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"metrics": [
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"options": [
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},
{
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},
{
"Technical Impact": "partial"
}
],
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"timestamp": "2024-09-29T14:21:20.078497Z",
"version": "2.0.3"
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"type": "ssvc"
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"dateUpdated": "2024-09-29T14:21:21.367Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"status": "affected",
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"version": "6.1.2",
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},
{
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"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix"
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"value": "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."
}
],
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},
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"value": "AV:L - The bug is reached only via local V4L2 ioctls (VIDIOC_S_SELECTION / STREAMON) on the vivid /dev/videoN node; there is no network or adjacent-protocol path into vivid_vid_cap_s_selection or the capture kthread fill path.\nAC:L - An attacker-controlled, race-free ioctl sequence (enable crop+compose+scaler, set a crop that expands compose past fmt) deterministically leaves compose outside the buffer bounds; syzkaller reproduces the page-fault OOB write reliably.\nPR:L - Opening the vivid video node and issuing S_SELECTION requires no capability check\u2014only video-group or seat uaccess on /dev/videoN\u2014and crop/compose/scaler are ordinary unprivileged V4L2 controls (default-enabled).\nUI:N - The attacker opens the device, configures selection/format/streaming themselves; the OOB write then runs in the vivid capture kthread with no victim action.\nS:U - The out-of-bounds write corrupts kernel memory within the host kernel\u2019s security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - Heap/vmalloc memory corruption from the oversized compose write is leverageable for kernel information disclosure (same class as CVE-2025-38226), and related loop/copy paths can surface adjacent data into attacker-readable capture buffers.\nI:H - This is an attacker-triggered out-of-bounds write in tpg_fill_plane_buffer (memcpy past the allocated frame buffer via compose.top/height/left), a classic heap corruption primitive suitable for control-flow hijacking.\nA:H - The demonstrated effect is a kernel oops (supervisor write page fault in memcpy_erms during tpg_fill_plane_buffer in the vivid kthread), which can panic the machine and is re-triggerable at will."
}
]
}
],
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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