{"id":"CVE-2020-36779","state":"PUBLISHED","title":"i2c: stm32f7: fix reference leak when pm_runtime_get_sync fails","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: stm32f7: fix reference leak when pm_runtime_get_sync fails\n\nThe PM reference count is not expected to be incremented on\nreturn in these stm32f7_i2c_xx serious functions.\n\nHowever, pm_runtime_get_sync will increment the PM reference\ncount even failed. Forgetting to putting operation will result\nin a reference leak here.\n\nReplace it with pm_runtime_resume_and_get to keep usage\ncounter balanced.","publishedAt":"2024-02-28T08:13:02.220Z","updatedAt":"2026-05-11T13:42:44.081Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ea6dd25deeb5b797a145be7f860e3085e7d104c3","status":"affected","lessThan":"c323b270a52a26aa8038a4d1fd9a850904a41166","versionType":"git"},{"version":"ea6dd25deeb5b797a145be7f860e3085e7d104c3","status":"affected","lessThan":"d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4","versionType":"git"},{"version":"ea6dd25deeb5b797a145be7f860e3085e7d104c3","status":"affected","lessThan":"c7ea772c9fcf711ed566814b92eecaffc0e2bfd0","versionType":"git"},{"version":"ea6dd25deeb5b797a145be7f860e3085e7d104c3","status":"affected","lessThan":"2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/i2c/busses/i2c-stm32f7.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.6","versionType":"semver"},{"version":"5.10.37","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.11.21","status":"unaffected","lessThanOrEqual":"5.11.*","versionType":"semver"},{"version":"5.12.4","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/i2c/busses/i2c-stm32f7.c"]}],"references":["https://git.kernel.org/stable/c/c323b270a52a26aa8038a4d1fd9a850904a41166","https://git.kernel.org/stable/c/d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4","https://git.kernel.org/stable/c/c7ea772c9fcf711ed566814b92eecaffc0e2bfd0","https://git.kernel.org/stable/c/2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b"],"weaknesses":[],"ingestedAt":"2026-10-29T19:47:24.909Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/36xxx/CVE-2020-36779.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2020-36779","state":"PUBLISHED","datePublished":"2024-02-28T08:13:02.220Z","dateUpdated":"2026-05-11T13:42:44.081Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-26T17:07:27.434Z"},"containers":{"cna":{"title":"i2c: stm32f7: fix reference leak when pm_runtime_get_sync fails","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: stm32f7: fix reference leak when pm_runtime_get_sync fails\n\nThe PM reference count is not expected to be incremented on\nreturn in these stm32f7_i2c_xx serious functions.\n\nHowever, pm_runtime_get_sync will increment the PM reference\ncount even failed. Forgetting to putting operation will result\nin a reference leak here.\n\nReplace it with pm_runtime_resume_and_get to keep usage\ncounter balanced."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ea6dd25deeb5b797a145be7f860e3085e7d104c3","status":"affected","lessThan":"c323b270a52a26aa8038a4d1fd9a850904a41166","versionType":"git"},{"version":"ea6dd25deeb5b797a145be7f860e3085e7d104c3","status":"affected","lessThan":"d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4","versionType":"git"},{"version":"ea6dd25deeb5b797a145be7f860e3085e7d104c3","status":"affected","lessThan":"c7ea772c9fcf711ed566814b92eecaffc0e2bfd0","versionType":"git"},{"version":"ea6dd25deeb5b797a145be7f860e3085e7d104c3","status":"affected","lessThan":"2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/i2c/busses/i2c-stm32f7.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.6","versionType":"semver"},{"version":"5.10.37","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.11.21","status":"unaffected","lessThanOrEqual":"5.11.*","versionType":"semver"},{"version":"5.12.4","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/i2c/busses/i2c-stm32f7.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c323b270a52a26aa8038a4d1fd9a850904a41166"},{"url":"https://git.kernel.org/stable/c/d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4"},{"url":"https://git.kernel.org/stable/c/c7ea772c9fcf711ed566814b92eecaffc0e2bfd0"},{"url":"https://git.kernel.org/stable/c/2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T13:42:44.081Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.10.37"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.11.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.12.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-21T16:27:26.284487Z","id":"CVE-2020-36779","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-21T16:27:34.650Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/c323b270a52a26aa8038a4d1fd9a850904a41166","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d791b90f5c5e5aa8ccf9e33386c16bd2b7e333a4","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/c7ea772c9fcf711ed566814b92eecaffc0e2bfd0","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/2c662660ce2bd3b09dae21a9a9ac9395e1e6c00b","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T17:37:07.416Z"}}]}}}