GHSA-J7PJ-JR9C-8HG7
Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-06-01 18:31In the Linux kernel, the following vulnerability has been resolved:
media: amphion: Fix race between m2m job_abort and device_run
Fix kernel panic caused by race condition where v4l2_m2m_ctx_release() frees m2m_ctx while v4l2_m2m_try_run() is about to call device_run with the same context.
Race sequence: v4l2_m2m_try_run(): v4l2_m2m_ctx_release(): lock/unlock v4l2_m2m_cancel_job() job_abort() v4l2_m2m_job_finish() kfree(m2m_ctx) <- frees ctx device_run() <- use-after-free crash at 0x538
Crash trace: Unable to handle kernel read from unreadable memory at virtual address 0000000000000538 v4l2_m2m_try_run+0x78/0x138 v4l2_m2m_device_run_work+0x14/0x20
The amphion vpu driver does not rely on the m2m framework's device_run callback to perform encode/decode operations.
Fix the race by preventing m2m framework job scheduling entirely: - Add job_ready callback returning 0 (no jobs ready for m2m framework) - Remove job_abort callback to avoid the race condition
{
"affected": [],
"aliases": [
"CVE-2026-46058"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-27T14:17:25Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: amphion: Fix race between m2m job_abort and device_run\n\nFix kernel panic caused by race condition where v4l2_m2m_ctx_release()\nfrees m2m_ctx while v4l2_m2m_try_run() is about to call device_run\nwith the same context.\n\nRace sequence:\n v4l2_m2m_try_run(): v4l2_m2m_ctx_release():\n lock/unlock v4l2_m2m_cancel_job()\n job_abort()\n v4l2_m2m_job_finish()\n kfree(m2m_ctx) \u003c- frees ctx\n device_run() \u003c- use-after-free crash at 0x538\n\nCrash trace:\n Unable to handle kernel read from unreadable memory at virtual address\n 0000000000000538\n v4l2_m2m_try_run+0x78/0x138\n v4l2_m2m_device_run_work+0x14/0x20\n\nThe amphion vpu driver does not rely on the m2m framework\u0027s device_run\ncallback to perform encode/decode operations.\n\nFix the race by preventing m2m framework job scheduling entirely:\n- Add job_ready callback returning 0 (no jobs ready for m2m framework)\n- Remove job_abort callback to avoid the race condition",
"id": "GHSA-j7pj-jr9c-8hg7",
"modified": "2026-06-01T18:31:35Z",
"published": "2026-05-27T15:33:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46058"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/42dc622776f3ce1a6c31b13bdc686f7295e3b323"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/516467052fdfc6a13eadc70d43420ae57436bf3c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6be2cb75bc1300080cfc8051579f22efae9401f7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8cd35ceadcfc8c5da2eb7f7ce24525ce9d4ee62e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/da4f46c5cf1d26e6b09418ad453e152f2e75a02c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fdc150dac1adb9a98be9d6956cff0348838b024a"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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