An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfqidleslicetimerbody.
[
{
"target": {
"function": "bfq_idle_slice_timer_body",
"file": "block/bfq-iosched.c"
},
"deprecated": false,
"id": "CVE-2020-12657-98fe9ab2",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9",
"digest": {
"function_hash": "318236918291679827199508964327361658023",
"length": 540.0
}
},
{
"target": {
"file": "block/bfq-iosched.c"
},
"deprecated": false,
"id": "CVE-2020-12657-c0ceb578",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9",
"digest": {
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"threshold": 0.9
}
},
{
"target": {
"function": "bfq_idle_slice_timer",
"file": "block/bfq-iosched.c"
},
"deprecated": false,
"id": "CVE-2020-12657-c1dacf7f",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9",
"digest": {
"function_hash": "200195411143770188088142912657421572358",
"length": 228.0
}
}
]
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-12657.json"
[
{
"target": {
"function": "bfq_idle_slice_timer_body",
"file": "block/bfq-iosched.c"
},
"deprecated": false,
"id": "CVE-2020-12657-617e9ab0",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9",
"digest": {
"function_hash": "318236918291679827199508964327361658023",
"length": 540.0
}
},
{
"target": {
"function": "bfq_idle_slice_timer",
"file": "block/bfq-iosched.c"
},
"deprecated": false,
"id": "CVE-2020-12657-aed07c35",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9",
"digest": {
"function_hash": "200195411143770188088142912657421572358",
"length": 228.0
}
},
{
"target": {
"file": "block/bfq-iosched.c"
},
"deprecated": false,
"id": "CVE-2020-12657-b2956944",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9",
"digest": {
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],
"threshold": 0.9
}
}
]
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-12657.json"