CVE-2020-36776 (GCVE-0-2020-36776)
Vulnerability from cvelistv5
Published
2024-02-27 18:40
Modified
2025-05-04 12:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
thermal/drivers/cpufreq_cooling: Fix slab OOB issue
Slab OOB issue is scanned by KASAN in cpu_power_to_freq().
If power is limited below the power of OPP0 in EM table,
it will cause slab out-of-bound issue with negative array
index.
Return the lowest frequency if limited power cannot found
a suitable OPP in EM table to fix this issue.
Backtrace:
[<ffffffd02d2a37f0>] die+0x104/0x5ac
[<ffffffd02d2a5630>] bug_handler+0x64/0xd0
[<ffffffd02d288ce4>] brk_handler+0x160/0x258
[<ffffffd02d281e5c>] do_debug_exception+0x248/0x3f0
[<ffffffd02d284488>] el1_dbg+0x14/0xbc
[<ffffffd02d75d1d4>] __kasan_report+0x1dc/0x1e0
[<ffffffd02d75c2e0>] kasan_report+0x10/0x20
[<ffffffd02d75def8>] __asan_report_load8_noabort+0x18/0x28
[<ffffffd02e6fce5c>] cpufreq_power2state+0x180/0x43c
[<ffffffd02e6ead80>] power_actor_set_power+0x114/0x1d4
[<ffffffd02e6fac24>] allocate_power+0xaec/0xde0
[<ffffffd02e6f9f80>] power_allocator_throttle+0x3ec/0x5a4
[<ffffffd02e6ea888>] handle_thermal_trip+0x160/0x294
[<ffffffd02e6edd08>] thermal_zone_device_check+0xe4/0x154
[<ffffffd02d351cb4>] process_one_work+0x5e4/0xe28
[<ffffffd02d352f44>] worker_thread+0xa4c/0xfac
[<ffffffd02d360124>] kthread+0x33c/0x358
[<ffffffd02d289940>] ret_from_fork+0xc/0x18
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| ► | Linux | Linux |
Version: 371a3bc79c11b707d7a1b7a2c938dc3cc042fffb Version: 371a3bc79c11b707d7a1b7a2c938dc3cc042fffb Version: 371a3bc79c11b707d7a1b7a2c938dc3cc042fffb Version: 371a3bc79c11b707d7a1b7a2c938dc3cc042fffb Version: 39e0651cac9c80865b2838f297f95ffc0f34a1d8 Version: febe56f21371ba1e51e8586c3ddf8f54fc62fe61 Version: d3b7bacd1115400b94482dfc7efffc175c29b831 Version: 9006b543384ab10902819364c1205f11a1458571 |
|
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\"2.0.3\", \"timestamp\": \"2024-09-10T16:01:54.528476Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:19.691Z\"}}], \"cna\": {\"title\": \"thermal/drivers/cpufreq_cooling: Fix slab OOB issue\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"371a3bc79c11b707d7a1b7a2c938dc3cc042fffb\", \"lessThan\": \"c24a20912eef00587416628149c438e885eb1304\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"371a3bc79c11b707d7a1b7a2c938dc3cc042fffb\", \"lessThan\": \"876a5f33e5d961d879c5436987c09b3d9ef70379\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"371a3bc79c11b707d7a1b7a2c938dc3cc042fffb\", \"lessThan\": \"6bf443acf6ca4f666d0e4225614ba9993a3aa1a9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"371a3bc79c11b707d7a1b7a2c938dc3cc042fffb\", \"lessThan\": \"34ab17cc6c2c1ac93d7e5d53bb972df9a968f085\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"39e0651cac9c80865b2838f297f95ffc0f34a1d8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"febe56f21371ba1e51e8586c3ddf8f54fc62fe61\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d3b7bacd1115400b94482dfc7efffc175c29b831\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9006b543384ab10902819364c1205f11a1458571\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/thermal/cpufreq_cooling.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.8\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.8\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.36\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.11.20\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.11.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/thermal/cpufreq_cooling.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/c24a20912eef00587416628149c438e885eb1304\"}, {\"url\": \"https://git.kernel.org/stable/c/876a5f33e5d961d879c5436987c09b3d9ef70379\"}, {\"url\": \"https://git.kernel.org/stable/c/6bf443acf6ca4f666d0e4225614ba9993a3aa1a9\"}, {\"url\": \"https://git.kernel.org/stable/c/34ab17cc6c2c1ac93d7e5d53bb972df9a968f085\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nthermal/drivers/cpufreq_cooling: Fix slab OOB issue\\n\\nSlab OOB issue is scanned by KASAN in cpu_power_to_freq().\\nIf power is limited below the power of OPP0 in EM table,\\nit will cause slab out-of-bound issue with negative array\\nindex.\\n\\nReturn the lowest frequency if limited power cannot found\\na suitable OPP in EM table to fix this issue.\\n\\nBacktrace:\\n[\u003cffffffd02d2a37f0\u003e] die+0x104/0x5ac\\n[\u003cffffffd02d2a5630\u003e] bug_handler+0x64/0xd0\\n[\u003cffffffd02d288ce4\u003e] brk_handler+0x160/0x258\\n[\u003cffffffd02d281e5c\u003e] do_debug_exception+0x248/0x3f0\\n[\u003cffffffd02d284488\u003e] el1_dbg+0x14/0xbc\\n[\u003cffffffd02d75d1d4\u003e] __kasan_report+0x1dc/0x1e0\\n[\u003cffffffd02d75c2e0\u003e] kasan_report+0x10/0x20\\n[\u003cffffffd02d75def8\u003e] __asan_report_load8_noabort+0x18/0x28\\n[\u003cffffffd02e6fce5c\u003e] cpufreq_power2state+0x180/0x43c\\n[\u003cffffffd02e6ead80\u003e] power_actor_set_power+0x114/0x1d4\\n[\u003cffffffd02e6fac24\u003e] allocate_power+0xaec/0xde0\\n[\u003cffffffd02e6f9f80\u003e] power_allocator_throttle+0x3ec/0x5a4\\n[\u003cffffffd02e6ea888\u003e] handle_thermal_trip+0x160/0x294\\n[\u003cffffffd02e6edd08\u003e] thermal_zone_device_check+0xe4/0x154\\n[\u003cffffffd02d351cb4\u003e] process_one_work+0x5e4/0xe28\\n[\u003cffffffd02d352f44\u003e] worker_thread+0xa4c/0xfac\\n[\u003cffffffd02d360124\u003e] kthread+0x33c/0x358\\n[\u003cffffffd02d289940\u003e] ret_from_fork+0xc/0x18\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.36\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.11.20\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.12.3\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.13\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.14.189\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.19.134\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.4.53\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.7.8\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:40:32.375Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2020-36776\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T12:40:32.375Z\", \"dateReserved\": \"2024-02-26T17:07:27.434Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-27T18:40:25.615Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
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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