CVE-2023-52491 (GCVE-0-2023-52491)
Vulnerability from cvelistv5
Published
2024-02-29 15:52
Modified
2025-05-04 07:37
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_run
In mtk_jpeg_probe, &jpeg->job_timeout_work is bound with
mtk_jpeg_job_timeout_work.
In mtk_jpeg_dec_device_run, if error happens in
mtk_jpeg_set_dec_dst, it will finally start the worker while
mark the job as finished by invoking v4l2_m2m_job_finish.
There are two methods to trigger the bug. If we remove the
module, it which will call mtk_jpeg_remove to make cleanup.
The possible sequence is as follows, which will cause a
use-after-free bug.
CPU0 CPU1
mtk_jpeg_dec_... |
start worker |
|mtk_jpeg_job_timeout_work
mtk_jpeg_remove |
v4l2_m2m_release |
kfree(m2m_dev); |
|
| v4l2_m2m_get_curr_priv
| m2m_dev->curr_ctx //use
If we close the file descriptor, which will call mtk_jpeg_release,
it will have a similar sequence.
Fix this bug by starting timeout worker only if started jpegdec worker
successfully. Then v4l2_m2m_job_finish will only be called in
either mtk_jpeg_job_timeout_work or mtk_jpeg_dec_device_run.
References
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
► | Linux | Linux |
Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93 |
|
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\"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/43872f44eee6c6781fea1348b38885d8e78face9\"}, {\"url\": \"https://git.kernel.org/stable/c/1b1036c60a37a30caf6759a90fe5ecd06ec35590\"}, {\"url\": \"https://git.kernel.org/stable/c/9fec4db7fff54d9b0306a332bab31eac47eeb5f6\"}, {\"url\": \"https://git.kernel.org/stable/c/8254d54d00eb6cdb8367399c7f912eb8d354ecd7\"}, {\"url\": \"https://git.kernel.org/stable/c/6e2f37022f0fc0893da4d85a0500c9d547fffd4c\"}, {\"url\": \"https://git.kernel.org/stable/c/206c857dd17d4d026de85866f1b5f0969f2a109e\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmedia: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_run\\n\\nIn mtk_jpeg_probe, \u0026jpeg-\u003ejob_timeout_work is bound with\\nmtk_jpeg_job_timeout_work.\\n\\nIn mtk_jpeg_dec_device_run, if error happens in\\nmtk_jpeg_set_dec_dst, it will finally start the worker while\\nmark the job as finished by invoking v4l2_m2m_job_finish.\\n\\nThere are two methods to trigger the bug. If we remove the\\nmodule, it which will call mtk_jpeg_remove to make cleanup.\\nThe possible sequence is as follows, which will cause a\\nuse-after-free bug.\\n\\nCPU0 CPU1\\nmtk_jpeg_dec_... |\\n start worker\\t |\\n |mtk_jpeg_job_timeout_work\\nmtk_jpeg_remove |\\n v4l2_m2m_release |\\n kfree(m2m_dev); |\\n |\\n | v4l2_m2m_get_curr_priv\\n | m2m_dev-\u003ecurr_ctx //use\\n\\nIf we close the file descriptor, which will call mtk_jpeg_release,\\nit will have a similar sequence.\\n\\nFix this bug by starting timeout worker only if started jpegdec worker\\nsuccessfully. Then v4l2_m2m_job_finish will only be called in\\neither mtk_jpeg_job_timeout_work or mtk_jpeg_dec_device_run.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.210\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.149\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.76\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.15\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.3\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"4.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:37:54.249Z\"}}}", "cveMetadata": "{\"cveId\": \"CVE-2023-52491\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:37:54.249Z\", \"dateReserved\": \"2024-02-20T12:30:33.303Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-29T15:52:09.891Z\", \"assignerShortName\": \"Linux\"}", "dataType": "CVE_RECORD", "dataVersion": "5.1" } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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