CVE-2020-36776thermal/drivers/cpufreq_cooling: Fix slab OOB issue
- 5.5MediumCVSS base score
- 0.23%Exploitation in 30 daysEPSS · top 86% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.23% · top 86% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 371a3bc79c11b707d7a1b7a2c938dc3cc042fffb – < c24a20912eef00587416628149c438e885eb1304
- affected 371a3bc79c11b707d7a1b7a2c938dc3cc042fffb – < 876a5f33e5d961d879c5436987c09b3d9ef70379
- affected 371a3bc79c11b707d7a1b7a2c938dc3cc042fffb – < 6bf443acf6ca4f666d0e4225614ba9993a3aa1a9
- affected 371a3bc79c11b707d7a1b7a2c938dc3cc042fffb – < 34ab17cc6c2c1ac93d7e5d53bb972df9a968f085
- affected 39e0651cac9c80865b2838f297f95ffc0f34a1d8
- affected febe56f21371ba1e51e8586c3ddf8f54fc62fe61
- affected d3b7bacd1115400b94482dfc7efffc175c29b831
- affected 9006b543384ab10902819364c1205f11a1458571
- affected 4.14.189 – < 4.15
- affected 4.19.134 – < 4.20
- affected 5.4.53 – < 5.5
- affected 5.7.8 – < 5.8
- affected 5.8
- unaffected < 5.8
- unaffected 5.10.36 – ≤ 5.10.*
- unaffected 5.11.20 – ≤ 5.11.*
- unaffected 5.12.3 – ≤ 5.12.*
- unaffected 5.13 – ≤ *
References
References4
- https://git.kernel.org/stable/c/c24a20912eef00587416628149c438e885eb1304 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/876a5f33e5d961d879c5436987c09b3d9ef70379 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/6bf443acf6ca4f666d0e4225614ba9993a3aa1a9 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/34ab17cc6c2c1ac93d7e5d53bb972df9a968f085 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-24217 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-36776)Record last updated .