{"cve":"CVE-2024-42136","nvd":{"published":"2024-07-30T08:15:05.507","modified":"2026-06-17T07:48:54.460","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-190"],"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://git.kernel.org/stable/c/0c97527e916054acc4a46ffb02842988acb2e92b"],"products":["debian:debian_linux","linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:53:51.317825789+00:00"},"epss":{"cve":"CVE-2024-42136","score":0.00234,"percentile":0.14364,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}