{"id":"CVE-2023-53106","state":"PUBLISHED","title":"nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: st-nci: Fix use after free bug in ndlc_remove due to race condition\n\nThis bug influences both st_nci_i2c_remove and st_nci_spi_remove.\nTake st_nci_i2c_remove as an example.\n\nIn st_nci_i2c_probe, it called ndlc_probe and bound &ndlc->sm_work\nwith llt_ndlc_sm_work.\n\nWhen it calls ndlc_recv or timeout handler, it will finally call\nschedule_work to start the work.\n\nWhen we call st_nci_i2c_remove to remove the driver, there\nmay be a sequence as follows:\n\nFix it by finishing the work before cleanup in ndlc_remove\n\nCPU0                  CPU1\n\n                    |llt_ndlc_sm_work\nst_nci_i2c_remove   |\n  ndlc_remove       |\n     st_nci_remove  |\n     nci_free_device|\n     kfree(ndev)    |\n//free ndlc->ndev   |\n                    |llt_ndlc_rcv_queue\n                    |nci_recv_frame\n                    |//use ndlc->ndev","publishedAt":"2025-05-02T15:55:47.501Z","updatedAt":"2026-05-11T19:38:37.567Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"2156490c4b7cacda9a18ec99929940b8376dc0e3","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"3405eb641dafcc8b28d174784b203c1622c121bf","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"b0c202a8dc63008205a5d546559736507a9aae66","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"43aa468df246175207a7d5d7d6d31b231f15b49c","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"84dd9cc34014e3a3dcce0eb6d54b8a067e97676b","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"5e331022b448fbc5e76f24349cd0246844dcad25","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"f589e5b56c562d99ea74e05b1c3f0eab78aa17a3","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"5000fe6c27827a61d8250a7e4a1d26c3298ef4f6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nfc/st-nci/ndlc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"4.14.311","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.279","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.238","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.176","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.104","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.21","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.8","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nfc/st-nci/ndlc.c"]}],"references":["https://git.kernel.org/stable/c/2156490c4b7cacda9a18ec99929940b8376dc0e3","https://git.kernel.org/stable/c/3405eb641dafcc8b28d174784b203c1622c121bf","https://git.kernel.org/stable/c/b0c202a8dc63008205a5d546559736507a9aae66","https://git.kernel.org/stable/c/43aa468df246175207a7d5d7d6d31b231f15b49c","https://git.kernel.org/stable/c/84dd9cc34014e3a3dcce0eb6d54b8a067e97676b","https://git.kernel.org/stable/c/5e331022b448fbc5e76f24349cd0246844dcad25","https://git.kernel.org/stable/c/f589e5b56c562d99ea74e05b1c3f0eab78aa17a3","https://git.kernel.org/stable/c/5000fe6c27827a61d8250a7e4a1d26c3298ef4f6"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53106.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53106","state":"PUBLISHED","datePublished":"2025-05-02T15:55:47.501Z","dateUpdated":"2026-05-11T19:38:37.567Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-05-02T15:51:43.553Z"},"containers":{"cna":{"title":"nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: st-nci: Fix use after free bug in ndlc_remove due to race condition\n\nThis bug influences both st_nci_i2c_remove and st_nci_spi_remove.\nTake st_nci_i2c_remove as an example.\n\nIn st_nci_i2c_probe, it called ndlc_probe and bound &ndlc->sm_work\nwith llt_ndlc_sm_work.\n\nWhen it calls ndlc_recv or timeout handler, it will finally call\nschedule_work to start the work.\n\nWhen we call st_nci_i2c_remove to remove the driver, there\nmay be a sequence as follows:\n\nFix it by finishing the work before cleanup in ndlc_remove\n\nCPU0                  CPU1\n\n                    |llt_ndlc_sm_work\nst_nci_i2c_remove   |\n  ndlc_remove       |\n     st_nci_remove  |\n     nci_free_device|\n     kfree(ndev)    |\n//free ndlc->ndev   |\n                    |llt_ndlc_rcv_queue\n                    |nci_recv_frame\n                    |//use ndlc->ndev"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"2156490c4b7cacda9a18ec99929940b8376dc0e3","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"3405eb641dafcc8b28d174784b203c1622c121bf","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"b0c202a8dc63008205a5d546559736507a9aae66","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"43aa468df246175207a7d5d7d6d31b231f15b49c","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"84dd9cc34014e3a3dcce0eb6d54b8a067e97676b","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"5e331022b448fbc5e76f24349cd0246844dcad25","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"f589e5b56c562d99ea74e05b1c3f0eab78aa17a3","versionType":"git"},{"version":"35630df68d6030daf12dde12ed07bbe26324e6ac","status":"affected","lessThan":"5000fe6c27827a61d8250a7e4a1d26c3298ef4f6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nfc/st-nci/ndlc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"4.14.311","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.279","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.238","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.176","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.104","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.21","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.8","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nfc/st-nci/ndlc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/2156490c4b7cacda9a18ec99929940b8376dc0e3"},{"url":"https://git.kernel.org/stable/c/3405eb641dafcc8b28d174784b203c1622c121bf"},{"url":"https://git.kernel.org/stable/c/b0c202a8dc63008205a5d546559736507a9aae66"},{"url":"https://git.kernel.org/stable/c/43aa468df246175207a7d5d7d6d31b231f15b49c"},{"url":"https://git.kernel.org/stable/c/84dd9cc34014e3a3dcce0eb6d54b8a067e97676b"},{"url":"https://git.kernel.org/stable/c/5e331022b448fbc5e76f24349cd0246844dcad25"},{"url":"https://git.kernel.org/stable/c/f589e5b56c562d99ea74e05b1c3f0eab78aa17a3"},{"url":"https://git.kernel.org/stable/c/5000fe6c27827a61d8250a7e4a1d26c3298ef4f6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:38:37.567Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"4.14.311"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"4.19.279"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.4.238"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.10.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.15.104"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.1.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}