{"id":"CVE-2024-42136","state":"PUBLISHED","title":"cdrom: rearrange last_media_change check to avoid unintentional overflow","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncdrom: rearrange last_media_change check to avoid unintentional overflow\n\nWhen running syzkaller with the newly reintroduced signed integer wrap\nsanitizer we encounter this splat:\n\n[  366.015950] UBSAN: signed-integer-overflow in ../drivers/cdrom/cdrom.c:2361:33\n[  366.021089] -9223372036854775808 - 346321 cannot be represented in type '__s64' (aka 'long long')\n[  366.025894] program syz-executor.4 is using a deprecated SCSI ioctl, please convert it to SG_IO\n[  366.027502] CPU: 5 PID: 28472 Comm: syz-executor.7 Not tainted 6.8.0-rc2-00035-gb3ef86b5a957 #1\n[  366.027512] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[  366.027518] Call Trace:\n[  366.027523]  <TASK>\n[  366.027533]  dump_stack_lvl+0x93/0xd0\n[  366.027899]  handle_overflow+0x171/0x1b0\n[  366.038787] ata1.00: invalid multi_count 32 ignored\n[  366.043924]  cdrom_ioctl+0x2c3f/0x2d10\n[  366.063932]  ? __pm_runtime_resume+0xe6/0x130\n[  366.071923]  sr_block_ioctl+0x15d/0x1d0\n[  366.074624]  ? __pfx_sr_block_ioctl+0x10/0x10\n[  366.077642]  blkdev_ioctl+0x419/0x500\n[  366.080231]  ? __pfx_blkdev_ioctl+0x10/0x10\n...\n\nHistorically, the signed integer overflow sanitizer did not work in the\nkernel due to its interaction with `-fwrapv` but this has since been\nchanged [1] in the newest version of Clang. It was re-enabled in the\nkernel with Commit 557f8c582a9ba8ab (\"ubsan: Reintroduce signed overflow\nsanitizer\").\n\nLet's rearrange the check to not perform any arithmetic, thus not\ntripping the sanitizer.","publishedAt":"2024-07-30T07:46:30.975Z","updatedAt":"2026-05-11T20:27:40.488Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"67f1e027c27054e641584655020a417eaac9cb3a","status":"affected","lessThan":"0c97527e916054acc4a46ffb02842988acb2e92b","versionType":"git"},{"version":"67f1e027c27054e641584655020a417eaac9cb3a","status":"affected","lessThan":"3ee21e14c8c329168a0b66bab00ecd18f5d0dee3","versionType":"git"},{"version":"67f1e027c27054e641584655020a417eaac9cb3a","status":"affected","lessThan":"e809bc112712da8f7e15822674c6562da6cdf24c","versionType":"git"},{"version":"67f1e027c27054e641584655020a417eaac9cb3a","status":"affected","lessThan":"efb905aeb44b0e99c0e6b07865b1885ae0471ebf","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cdrom/cdrom.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.98","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.39","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.9.9","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/cdrom/cdrom.c"]}],"references":["https://git.kernel.org/stable/c/0c97527e916054acc4a46ffb02842988acb2e92b","https://git.kernel.org/stable/c/3ee21e14c8c329168a0b66bab00ecd18f5d0dee3","https://git.kernel.org/stable/c/e809bc112712da8f7e15822674c6562da6cdf24c","https://git.kernel.org/stable/c/efb905aeb44b0e99c0e6b07865b1885ae0471ebf","https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:47.831Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/42xxx/CVE-2024-42136.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-42136","state":"PUBLISHED","datePublished":"2024-07-30T07:46:30.975Z","dateUpdated":"2026-05-11T20:27:40.488Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-07-29T15:50:41.187Z"},"containers":{"cna":{"title":"cdrom: rearrange last_media_change check to avoid unintentional overflow","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncdrom: rearrange last_media_change check to avoid unintentional overflow\n\nWhen running syzkaller with the newly reintroduced signed integer wrap\nsanitizer we encounter this splat:\n\n[  366.015950] UBSAN: signed-integer-overflow in ../drivers/cdrom/cdrom.c:2361:33\n[  366.021089] -9223372036854775808 - 346321 cannot be represented in type '__s64' (aka 'long long')\n[  366.025894] program syz-executor.4 is using a deprecated SCSI ioctl, please convert it to SG_IO\n[  366.027502] CPU: 5 PID: 28472 Comm: syz-executor.7 Not tainted 6.8.0-rc2-00035-gb3ef86b5a957 #1\n[  366.027512] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[  366.027518] Call Trace:\n[  366.027523]  <TASK>\n[  366.027533]  dump_stack_lvl+0x93/0xd0\n[  366.027899]  handle_overflow+0x171/0x1b0\n[  366.038787] ata1.00: invalid multi_count 32 ignored\n[  366.043924]  cdrom_ioctl+0x2c3f/0x2d10\n[  366.063932]  ? __pm_runtime_resume+0xe6/0x130\n[  366.071923]  sr_block_ioctl+0x15d/0x1d0\n[  366.074624]  ? __pfx_sr_block_ioctl+0x10/0x10\n[  366.077642]  blkdev_ioctl+0x419/0x500\n[  366.080231]  ? __pfx_blkdev_ioctl+0x10/0x10\n...\n\nHistorically, the signed integer overflow sanitizer did not work in the\nkernel due to its interaction with `-fwrapv` but this has since been\nchanged [1] in the newest version of Clang. It was re-enabled in the\nkernel with Commit 557f8c582a9ba8ab (\"ubsan: Reintroduce signed overflow\nsanitizer\").\n\nLet's rearrange the check to not perform any arithmetic, thus not\ntripping the sanitizer."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"67f1e027c27054e641584655020a417eaac9cb3a","status":"affected","lessThan":"0c97527e916054acc4a46ffb02842988acb2e92b","versionType":"git"},{"version":"67f1e027c27054e641584655020a417eaac9cb3a","status":"affected","lessThan":"3ee21e14c8c329168a0b66bab00ecd18f5d0dee3","versionType":"git"},{"version":"67f1e027c27054e641584655020a417eaac9cb3a","status":"affected","lessThan":"e809bc112712da8f7e15822674c6562da6cdf24c","versionType":"git"},{"version":"67f1e027c27054e641584655020a417eaac9cb3a","status":"affected","lessThan":"efb905aeb44b0e99c0e6b07865b1885ae0471ebf","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/cdrom/cdrom.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.98","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.39","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.9.9","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/cdrom/cdrom.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0c97527e916054acc4a46ffb02842988acb2e92b"},{"url":"https://git.kernel.org/stable/c/3ee21e14c8c329168a0b66bab00ecd18f5d0dee3"},{"url":"https://git.kernel.org/stable/c/e809bc112712da8f7e15822674c6562da6cdf24c"},{"url":"https://git.kernel.org/stable/c/efb905aeb44b0e99c0e6b07865b1885ae0471ebf"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:27:40.488Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.98"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.6.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.9.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.10"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/0c97527e916054acc4a46ffb02842988acb2e92b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/3ee21e14c8c329168a0b66bab00ecd18f5d0dee3","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/e809bc112712da8f7e15822674c6562da6cdf24c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/efb905aeb44b0e99c0e6b07865b1885ae0471ebf","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T22:02:03.881Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-42136","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T16:16:09.572102Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-09-11T17:34:35.937Z"}}]}}}