{"id":"CVE-2024-41000","revision":"4ebf71c17a4342d59054fd9f2920b755","records":[{"revision":"4ebf71c17a4342d59054fd9f2920b755","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-41000","aliases":[],"title":"block/ioctl: prefer different overflow check","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nblock/ioctl: prefer different overflow check\n\nRunning syzkaller with the newly reintroduced signed integer overflow\nsanitizer shows this report:\n\n[   62.982337] ------------[ cut here ]------------\n[   62.985692] cgroup: Invalid name\n[   62.986211] UBSAN: signed-integer-overflow in ../block/ioctl.c:36:46\n[   62.989370] 9pnet_fd: p9_fd_create_tcp (7343): problem connecting socket to 127.0.0.1\n[   62.992992] 9223372036854775807 + 4095 cannot be represented in type 'long long'\n[   62.997827] 9pnet_fd: p9_fd_create_tcp (7345): problem connecting socket to 127.0.0.1\n[   62.999369] random: crng reseeded on system resumption\n[   63.000634] GUP no longer grows the stack in syz-executor.2 (7353): 20002000-20003000 (20001000)\n[   63.000668] CPU: 0 PID: 7353 Comm: syz-executor.2 Not tainted 6.8.0-rc2-00035-gb3ef86b5a957 #1\n[   63.000677] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[   63.000682] Call Trace:\n[   63.000686]  <TASK>\n[   63.000731]  dump_stack_lvl+0x93/0xd0\n[   63.000919]  __get_user_pages+0x903/0xd30\n[   63.001030]  __gup_longterm_locked+0x153e/0x1ba0\n[   63.001041]  ? _raw_read_unlock_irqrestore+0x17/0x50\n[   63.001072]  ? try_get_folio+0x29c/0x2d0\n[   63.001083]  internal_get_user_pages_fast+0x1119/0x1530\n[   63.001109]  iov_iter_extract_pages+0x23b/0x580\n[   63.001206]  bio_iov_iter_get_pages+0x4de/0x1220\n[   63.001235]  iomap_dio_bio_iter+0x9b6/0x1410\n[   63.001297]  __iomap_dio_rw+0xab4/0x1810\n[   63.001316]  iomap_dio_rw+0x45/0xa0\n[   63.001328]  ext4_file_write_iter+0xdde/0x1390\n[   63.001372]  vfs_write+0x599/0xbd0\n[   63.001394]  ksys_write+0xc8/0x190\n[   63.001403]  do_syscall_64+0xd4/0x1b0\n[   63.001421]  ? arch_exit_to_user_mode_prepare+0x3a/0x60\n[   63.001479]  entry_SYSCALL_64_after_hwframe+0x6f/0x77\n[   63.001535] RIP: 0033:0x7f7fd3ebf539\n[   63.001551] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48\n[   63.001562] RSP: 002b:00007f7fd32570c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\n[   63.001584] RAX: ffffffffffffffda RBX: 00007f7fd3ff3f80 RCX: 00007f7fd3ebf539\n[   63.001590] RDX: 4db6d1e4f7e43360 RSI: 0000000020000000 RDI: 0000000000000004\n[   63.001595] RBP: 00007f7fd3f1e496 R08: 0000000000000000 R09: 0000000000000000\n[   63.001599] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\n[   63.001604] R13: 0000000000000006 R14: 00007f7fd3ff3f80 R15: 00007ffd415ad2b8\n...\n[   63.018142] ---[ end trace ]---\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 rework this overflow checking logic to not actually perform an\noverflow during the check itself, thus avoiding the UBSAN splat.\n\n[1]: https://github.com/llvm/llvm-project/pull/82432","state":0,"publishedAt":"2024-07-12T12:37:41.189+00:00","modifiedAt":"2026-10-15T00:46:54.69+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"block/ioctl.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"8f6dfa1f1efe6dcca2d43e575491d8fcbe922f62\",\n                            \"lessThan\": \"58706e482bf45c4db48b0c53aba2468c97adda24\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5010c27120962c85d2f421d2cf211791c9603503\",\n                            \"lessThan\": \"3220c90f4dbdc6d20d0608b164d964434a810d66\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ef31cc87794731ffcb578a195a2c47d744e25fb8\",\n                            \"lessThan\": \"61ec76ec930709b7bcd69029ef1fe90491f20cf9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cb16cc1abda18a9514106d2ac8c8d7abc0be5ed8\",\n                            \"lessThan\": \"fd841ee01fb4a79cb7f5cc424b5c96c3a73b2d1e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6f64f866aa1ae6975c95d805ed51d7e9433a0016\",\n                            \"lessThan\": \"54160fb1db2de367485f21e30196c42f7ee0be4e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6f64f866aa1ae6975c95d805ed51d7e9433a0016\",\n                            \"lessThan\": \"ccb326b5f9e623eb7f130fbbf2505ec0e2dcaff9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bcdc288e7bc008daf38ef0401b53e4a8bb61bbe5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5.10.215\",\n                            \"lessThan\": \"5.10.221\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.148\",\n                            \"lessThan\": \"5.15.162\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.75\",\n                            \"lessThan\": \"6.1.96\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.14\",\n                            \"lessThan\": \"6.6.36\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.7.2\",\n                            \"lessThan\": \"6.8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"block/ioctl.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.221\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.162\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.96\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.36\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.9.7\",\n                            \"lessThanOrEqual\": \"6.9.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.10\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/58706e482bf45c4db48b0c53aba2468c97adda24","https://git.kernel.org/stable/c/3220c90f4dbdc6d20d0608b164d964434a810d66","https://git.kernel.org/stable/c/61ec76ec930709b7bcd69029ef1fe90491f20cf9","https://git.kernel.org/stable/c/fd841ee01fb4a79cb7f5cc424b5c96c3a73b2d1e","https://git.kernel.org/stable/c/54160fb1db2de367485f21e30196c42f7ee0be4e","https://git.kernel.org/stable/c/ccb326b5f9e623eb7f130fbbf2505ec0e2dcaff9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-41000","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-41000","identifiers":["CVE-2024-41000"]},"retained":false,"historicalAffected":[]}],"coverage":[]}