CVE-2024-35920

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-35920
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-35920.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-35920
Downstream
Published
2024-05-19T10:10:32Z
Modified
2025-10-17T03:49:37.727071Z
Summary
media: mediatek: vcodec: adding lock to protect decoder context list
Details

In the Linux kernel, the following vulnerability has been resolved:

media: mediatek: vcodec: adding lock to protect decoder context list

Add a lock for the ctxlist, to avoid accessing a NULL pointer within the 'vpudecipihandler' function when the ctx_list has been deleted due to an unexpected behavior on the SCP IP block.

Hardware name: Google juniper sku16 board (DT) pstate: 20400005 (nzCv daif +PAN -UAO -TCO BTYPE=--) pc : vpudecipihandler+0x58/0x1f8 [mtkvcodecdec] lr : scpipihandler+0xd0/0x194 [mtkscp] sp : ffffffc0131dbbd0 x29: ffffffc0131dbbd0 x28: 0000000000000000 x27: ffffff9bb277f348 x26: ffffff9bb242ad00 x25: ffffffd2d440d3b8 x24: ffffffd2a13ff1d4 x23: ffffff9bb7fe85a0 x22: ffffffc0133fbdb0 x21: 0000000000000010 x20: ffffff9b050ea328 x19: ffffffc0131dbc08 x18: 0000000000001000 x17: 0000000000000000 x16: ffffffd2d461c6e0 x15: 0000000000000242 x14: 000000000000018f x13: 000000000000004d x12: 0000000000000000 x11: 0000000000000001 x10: fffffffffffffff0 x9 : ffffff9bb6e793a8 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : fffffffffffffff0 x3 : 0000000000000020 x2 : ffffff9bb6e79080 x1 : 0000000000000010 x0 : ffffffc0131dbc08 Call trace: vpudecipihandler+0x58/0x1f8 [mtkvcodecdec (HASH:6c3f 2)] scpipihandler+0xd0/0x194 [mtkscp (HASH:7046 3)] mt8183scpirqhandler+0x44/0x88 [mtkscp (HASH:7046 3)] scpirqhandler+0x48/0x90 [mtkscp (HASH:7046 3)] irqthreadfn+0x38/0x94 irqthread+0x100/0x1c0 kthread+0x140/0x1fc retfromfork+0x10/0x30 Code: 54000088 f94ca50a eb14015f 54000060 (f9400108) ---[ end trace ace43ce36cbd5c93 ]--- Kernel panic - not syncing: Oops: Fatal exception SMP: stopping secondary CPUs Kernel Offset: 0x12c4000000 from 0xffffffc010000000 PHYS_OFFSET: 0xffffffe580000000 CPU features: 0x08240002,2188200c Memory Limit: none

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
655b86e52eacdce79c2e02c5ec7258a97fcc2e4a
Fixed
0a2dc707aa42214f9c4827bd57e344e29a0841d6
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
655b86e52eacdce79c2e02c5ec7258a97fcc2e4a
Fixed
23aaf824121055ba81b55f75444355bd83c8eb38
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
655b86e52eacdce79c2e02c5ec7258a97fcc2e4a
Fixed
6467cda18c9f9b5f2f9a0aa1e2861c653e41f382

Affected versions

v6.*

v6.5
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.11
v6.6.12
v6.6.13
v6.6.14
v6.6.15
v6.6.16
v6.6.17
v6.6.18
v6.6.19
v6.6.2
v6.6.20
v6.6.21
v6.6.22
v6.6.23
v6.6.24
v6.6.25
v6.6.26
v6.6.3
v6.6.4
v6.6.5
v6.6.6
v6.6.7
v6.6.8
v6.6.9
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.8
v6.8-rc1
v6.8-rc2
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.8.1
v6.8.2
v6.8.3
v6.8.4
v6.8.5
v6.9-rc1

Database specific

vanir_signatures

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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@23aaf824121055ba81b55f75444355bd83c8eb38"
    },
    {
        "id": "CVE-2024-35920-cb467d02",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "target": {
            "file": "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c",
            "function": "fops_vcodec_open"
        },
        "digest": {
            "function_hash": "120419178522660240579437164197845789732",
            "length": 2243.0
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@23aaf824121055ba81b55f75444355bd83c8eb38"
    },
    {
        "id": "CVE-2024-35920-e86a6422",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "target": {
            "file": "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c",
            "function": "mtk_vcodec_probe"
        },
        "digest": {
            "function_hash": "216838261905398840127989839726572135262",
            "length": 4931.0
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@6467cda18c9f9b5f2f9a0aa1e2861c653e41f382"
    },
    {
        "id": "CVE-2024-35920-ed69f5f2",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Function",
        "target": {
            "file": "drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c",
            "function": "vpu_dec_check_ap_inst"
        },
        "digest": {
            "function_hash": "174464792292754686195608430766785105668",
            "length": 246.0
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@23aaf824121055ba81b55f75444355bd83c8eb38"
    },
    {
        "id": "CVE-2024-35920-f63ef042",
        "deprecated": false,
        "signature_version": "v1",
        "signature_type": "Line",
        "target": {
            "file": "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c"
        },
        "digest": {
            "line_hashes": [
                "323101691788918659025813413651286375936",
                "320671284389360104099588758702443612575",
                "245831805824137942546144966952075667736",
                "283343271777370770016610596488093326252",
                "187040843299768621702629370436257516918",
                "82813403473480939823346542326824251128",
                "302191859711334412288337766942202383218",
                "81109479187889575356943484801351883078",
                "263106660131588920455213319001689257687",
                "149224063649337503775737526107912997418",
                "134675756731441379169884562191972440173",
                "29797391068933180407096747640511032721",
                "237111050526210268781474541544151531629"
            ],
            "threshold": 0.9
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0a2dc707aa42214f9c4827bd57e344e29a0841d6"
    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.6.0
Fixed
6.6.27
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.8.6