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24 lines
1.2 KiB
JSON
24 lines
1.2 KiB
JSON
{
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"id": "CVE-2021-47081",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-03-01T22:15:47.483",
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"lastModified": "2024-03-01T22:22:25.913",
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"vulnStatus": "Awaiting Analysis",
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhabanalabs/gaudi: Fix a potential use after free in gaudi_memset_device_memory\n\nOur code analyzer reported a uaf.\n\nIn gaudi_memset_device_memory, cb is get via hl_cb_kernel_create()\nwith 2 refcount.\nIf hl_cs_allocate_job() failed, the execution runs into release_cb\nbranch. One ref of cb is dropped by hl_cb_put(cb) and could be freed\nif other thread also drops one ref. Then cb is used by cb->id later,\nwhich is a potential uaf.\n\nMy patch add a variable 'id' to accept the value of cb->id before the\nhl_cb_put(cb) is called, to avoid the potential uaf."
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/115726c5d312b462c9d9931ea42becdfa838a076",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/b49f5af30b0e4064fbd91e83823a4bfcb2c7a3e7",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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} |