{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47456","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T14:58:30.833Z","datePublished":"2024-05-22T06:19:45.363Z","dateUpdated":"2025-05-04T07:11:19.120Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:11:19.120Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_pci: peak_pci_remove(): fix UAF\n\nWhen remove the module peek_pci, referencing 'chan' again after\nreleasing 'dev' will cause UAF.\n\nFix this by releasing 'dev' later.\n\nThe following log reveals it:\n\n[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537\n[   35.965513 ] Call Trace:\n[   35.965718 ]  dump_stack_lvl+0xa8/0xd1\n[   35.966028 ]  print_address_description+0x87/0x3b0\n[   35.966420 ]  kasan_report+0x172/0x1c0\n[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170\n[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.967945 ]  __asan_report_load8_noabort+0x14/0x20\n[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.968752 ]  pci_device_remove+0xa9/0x250"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/can/sja1000/peak_pci.c"],"versions":[{"version":"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd","lessThan":"1c616528ba4aeb1125a06b407572ab7b56acae38","status":"affected","versionType":"git"},{"version":"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd","lessThan":"447d44cd2f67a20b596ede3ca3cd67086dfd9ca9","status":"affected","versionType":"git"},{"version":"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd","lessThan":"34914971bb3244db4ce2be44e9438a9b30c56250","status":"affected","versionType":"git"},{"version":"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd","lessThan":"adbda14730aacce41c0d3596415aa39ad63eafd9","status":"affected","versionType":"git"},{"version":"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd","lessThan":"1248582e47a9f7ce0ecd156c39fc61f8b6aa3699","status":"affected","versionType":"git"},{"version":"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd","lessThan":"28f28e4bc3a5e0051faa963f10b778ab38c1db69","status":"affected","versionType":"git"},{"version":"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd","lessThan":"0e5afdc2315b0737edcf55bede4ee1640d2d464d","status":"affected","versionType":"git"},{"version":"e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd","lessThan":"949fe9b35570361bc6ee2652f89a0561b26eec98","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/can/sja1000/peak_pci.c"],"versions":[{"version":"3.4","status":"affected"},{"version":"0","lessThan":"3.4","status":"unaffected","versionType":"semver"},{"version":"4.4.290","lessThanOrEqual":"4.4.*","status":"unaffected","versionType":"semver"},{"version":"4.9.288","lessThanOrEqual":"4.9.*","status":"unaffected","versionType":"semver"},{"version":"4.14.253","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.214","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.156","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.76","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.14.15","lessThanOrEqual":"5.14.*","status":"unaffected","versionType":"semver"},{"version":"5.15","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"4.4.290"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"4.9.288"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"4.14.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"4.19.214"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"5.4.156"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"5.10.76"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"5.14.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"5.15"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38"},{"url":"https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9"},{"url":"https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250"},{"url":"https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9"},{"url":"https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699"},{"url":"https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69"},{"url":"https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d"},{"url":"https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98"}],"title":"can: peak_pci: peak_pci_remove(): fix UAF","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.4,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2021-47456","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2024-05-22T14:47:53.013850Z"}}}],"affected":[{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"affected","version":"e6d9c80b7ca1"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"affected","version":"3.4"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"unaffected","version":"0"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"unaffected","version":"4.4.290"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"unaffected","version":"4.9.288"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"unaffected","version":"4.14.253"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"unaffected","version":"4.19.214"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"unaffected","version":"5.4.156"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"unaffected","version":"5.10.76"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"unaffected","version":"5.14.15"}],"defaultStatus":"unknown"},{"cpes":["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"],"vendor":"linux","product":"linux_kernel","versions":[{"status":"unaffected","version":"5.15"}],"defaultStatus":"unknown"}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-416","description":"CWE-416 Use After Free"}]},{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-467","description":"CWE-467 Use of sizeof() on a Pointer Type"}]}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:15:08.225Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:39:59.411Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98","tags":["x_transferred"]}]}]}}