{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-46924","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-25T13:45:52.719Z","datePublished":"2024-02-27T09:43:54.792Z","dateUpdated":"2025-05-04T07:00:27.015Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:00:27.015Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: st21nfca: Fix memory leak in device probe and remove\n\n'phy->pending_skb' is alloced when device probe, but forgot to free\nin the error handling path and remove path, this cause memory leak\nas follows:\n\nunreferenced object 0xffff88800bc06800 (size 512):\n  comm \"8\", pid 11775, jiffies 4295159829 (age 9.032s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450\n    [<00000000c93382b3>] kmalloc_reserve+0x37/0xd0\n    [<000000005fea522c>] __alloc_skb+0x124/0x380\n    [<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2\n\nFix it by freeing 'pending_skb' in error and remove."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nfc/st21nfca/i2c.c"],"versions":[{"version":"68957303f44a501af5cf37913208a2acaa6bcdf1","lessThan":"38c3e320e7ff46f2dc67bc5045333e63d9f8918d","status":"affected","versionType":"git"},{"version":"68957303f44a501af5cf37913208a2acaa6bcdf1","lessThan":"a1e0080a35a16ce3808f7040fe0c3a8fdb052349","status":"affected","versionType":"git"},{"version":"68957303f44a501af5cf37913208a2acaa6bcdf1","lessThan":"1cd4063dbc91cf7965d73a6a3855e2028cd4613b","status":"affected","versionType":"git"},{"version":"68957303f44a501af5cf37913208a2acaa6bcdf1","lessThan":"e553265ea56482da5700f56319fda9ff53e7dcb4","status":"affected","versionType":"git"},{"version":"68957303f44a501af5cf37913208a2acaa6bcdf1","lessThan":"238920381b8925d070d32d73cd9ce52ab29896fe","status":"affected","versionType":"git"},{"version":"68957303f44a501af5cf37913208a2acaa6bcdf1","lessThan":"1b9dadba502234eea7244879b8d5d126bfaf9f0c","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/nfc/st21nfca/i2c.c"],"versions":[{"version":"3.16","status":"affected"},{"version":"0","lessThan":"3.16","status":"unaffected","versionType":"semver"},{"version":"4.14.261","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.224","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.170","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.90","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.13","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.16","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":"3.16","versionEndExcluding":"4.14.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"4.19.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.4.170"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.10.90"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.15.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d"},{"url":"https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349"},{"url":"https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b"},{"url":"https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4"},{"url":"https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe"},{"url":"https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c"}],"title":"NFC: st21nfca: Fix memory leak in device probe and remove","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-46924","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-02-27T20:52:36.820473Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-07-05T17:22:03.300Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:17:42.982Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c","tags":["x_transferred"]}]}]}}