{"id":"CVE-2024-38634","state":"PUBLISHED","title":"serial: max3100: Lock port->lock when calling uart_handle_cts_change()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: max3100: Lock port->lock when calling uart_handle_cts_change()\n\nuart_handle_cts_change() has to be called with port lock taken,\nSince we run it in a separate work, the lock may not be taken at\nthe time of running. Make sure that it's taken by explicitly doing\nthat. Without it we got a splat:\n\n  WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0\n  ...\n  Workqueue: max3100-0 max3100_work [max3100]\n  RIP: 0010:uart_handle_cts_change+0xa6/0xb0\n  ...\n   max3100_handlerx+0xc5/0x110 [max3100]\n   max3100_work+0x12a/0x340 [max3100]","publishedAt":"2024-06-21T10:18:23.573Z","updatedAt":"2026-05-11T20:20:34.368Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"44b38924135d2093e2ec1812969464845dd66dc9","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"ea9b35372b58ac2931bfc1d5bc25e839d1221e30","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"cc121e3722a0a2c8f716ef991e5425b180a5fb94","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"78dbda51bb4241b88a52d71620f06231a341f9ba","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"8296bb9e5925b6634259c5d4daee88f0cc0884ec","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"93df2fba6c7dfa9a2f08546ea9a5ca4728758458","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"865b30c8661924ee9145f442bf32cea549faa869","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"77ab53371a2066fdf9b895246505f5ef5a4b5d47","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/tty/serial/max3100.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","versionType":"semver"},{"version":"4.19.316","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.278","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.219","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.161","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.93","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.33","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.9.4","status":"unaffected","lessThanOrEqual":"6.9.*","versionType":"semver"},{"version":"6.10","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/tty/serial/max3100.c"]}],"references":["https://git.kernel.org/stable/c/44b38924135d2093e2ec1812969464845dd66dc9","https://git.kernel.org/stable/c/ea9b35372b58ac2931bfc1d5bc25e839d1221e30","https://git.kernel.org/stable/c/cc121e3722a0a2c8f716ef991e5425b180a5fb94","https://git.kernel.org/stable/c/78dbda51bb4241b88a52d71620f06231a341f9ba","https://git.kernel.org/stable/c/8296bb9e5925b6634259c5d4daee88f0cc0884ec","https://git.kernel.org/stable/c/93df2fba6c7dfa9a2f08546ea9a5ca4728758458","https://git.kernel.org/stable/c/865b30c8661924ee9145f442bf32cea549faa869","https://git.kernel.org/stable/c/77ab53371a2066fdf9b895246505f5ef5a4b5d47","https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:39.287Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/38xxx/CVE-2024-38634.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-38634","state":"PUBLISHED","datePublished":"2024-06-21T10:18:23.573Z","dateUpdated":"2026-05-11T20:20:34.368Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-06-18T19:36:34.947Z"},"containers":{"cna":{"title":"serial: max3100: Lock port->lock when calling uart_handle_cts_change()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: max3100: Lock port->lock when calling uart_handle_cts_change()\n\nuart_handle_cts_change() has to be called with port lock taken,\nSince we run it in a separate work, the lock may not be taken at\nthe time of running. Make sure that it's taken by explicitly doing\nthat. Without it we got a splat:\n\n  WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0\n  ...\n  Workqueue: max3100-0 max3100_work [max3100]\n  RIP: 0010:uart_handle_cts_change+0xa6/0xb0\n  ...\n   max3100_handlerx+0xc5/0x110 [max3100]\n   max3100_work+0x12a/0x340 [max3100]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"44b38924135d2093e2ec1812969464845dd66dc9","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"ea9b35372b58ac2931bfc1d5bc25e839d1221e30","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"cc121e3722a0a2c8f716ef991e5425b180a5fb94","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"78dbda51bb4241b88a52d71620f06231a341f9ba","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"8296bb9e5925b6634259c5d4daee88f0cc0884ec","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"93df2fba6c7dfa9a2f08546ea9a5ca4728758458","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"865b30c8661924ee9145f442bf32cea549faa869","versionType":"git"},{"version":"7831d56b0a3544cbb6f82f76c34ca95e24d5b676","status":"affected","lessThan":"77ab53371a2066fdf9b895246505f5ef5a4b5d47","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/tty/serial/max3100.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","versionType":"semver"},{"version":"4.19.316","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.278","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.219","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.161","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.93","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.33","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.9.4","status":"unaffected","lessThanOrEqual":"6.9.*","versionType":"semver"},{"version":"6.10","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/tty/serial/max3100.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/44b38924135d2093e2ec1812969464845dd66dc9"},{"url":"https://git.kernel.org/stable/c/ea9b35372b58ac2931bfc1d5bc25e839d1221e30"},{"url":"https://git.kernel.org/stable/c/cc121e3722a0a2c8f716ef991e5425b180a5fb94"},{"url":"https://git.kernel.org/stable/c/78dbda51bb4241b88a52d71620f06231a341f9ba"},{"url":"https://git.kernel.org/stable/c/8296bb9e5925b6634259c5d4daee88f0cc0884ec"},{"url":"https://git.kernel.org/stable/c/93df2fba6c7dfa9a2f08546ea9a5ca4728758458"},{"url":"https://git.kernel.org/stable/c/865b30c8661924ee9145f442bf32cea549faa869"},{"url":"https://git.kernel.org/stable/c/77ab53371a2066fdf9b895246505f5ef5a4b5d47"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:20:34.368Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.19.316"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.4.278"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.10.219"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.15.161"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.1.93"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.6.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.9.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.10"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA 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