{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-41000",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-07-12T12:17:45.608Z",
        "datePublished": "2024-07-12T12:37:41.189Z",
        "dateUpdated": "2024-09-11T17:34:19.237Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-07-15T06:53:11.569Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "block/ioctl.c"
                    ],
                    "versions": [
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "58706e482bf4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "3220c90f4dbd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "61ec76ec9307",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "fd841ee01fb4",
                            "status": "affected",
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                            "version": "1da177e4c3f4",
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                            "version": "1da177e4c3f4",
                            "lessThan": "ccb326b5f9e6",
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                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "block/ioctl.c"
                    ],
                    "versions": [
                        {
                            "version": "5.10.221",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.15.162",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.1.96",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
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                        },
                        {
                            "version": "6.6.36",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
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                        {
                            "version": "6.9.7",
                            "lessThanOrEqual": "6.9.*",
                            "status": "unaffected",
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                        {
                            "version": "6.10",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
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                                        "Exploitation": "none"
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