{"id":"CVE-2024-38598","revision":"3a71f1ecbd544e1186e467df2f7951ea","records":[{"revision":"3a71f1ecbd544e1186e467df2f7951ea","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-38598","aliases":[],"title":"md: fix resync softlockup when bitmap size is less than array size","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd: fix resync softlockup when bitmap size is less than array size\n\nIs is reported that for dm-raid10, lvextend + lvchange --syncaction will\ntrigger following softlockup:\n\nkernel:watchdog: BUG: soft lockup - CPU#3 stuck for 26s! [mdX_resync:6976]\nCPU: 7 PID: 3588 Comm: mdX_resync Kdump: loaded Not tainted 6.9.0-rc4-next-20240419 #1\nRIP: 0010:_raw_spin_unlock_irq+0x13/0x30\nCall Trace:\n \n md_bitmap_start_sync+0x6b/0xf0\n raid10_sync_request+0x25c/0x1b40 [raid10]\n md_do_sync+0x64b/0x1020\n md_thread+0xa7/0x170\n kthread+0xcf/0x100\n ret_from_fork+0x30/0x50\n ret_from_fork_asm+0x1a/0x30\n\nAnd the detailed process is as follows:\n\nmd_do_sync\n j = mddev->resync_min\n while (j < max_sectors)\n sectors = raid10_sync_request(mddev, j, &skipped)\n if (!md_bitmap_start_sync(..., &sync_blocks))\n // md_bitmap_start_sync set sync_blocks to 0\n return sync_blocks + sectors_skippe;\n // sectors = 0;\n j += sectors;\n // j never change\n\nRoot cause is that commit 301867b1c168 (\"md/raid10: check\nslab-out-of-bounds in md_bitmap_get_counter\") return early from\nmd_bitmap_get_counter(), without setting returned blocks.\n\nFix this problem by always set returned blocks from\nmd_bitmap_get_counter\"(), as it used to be.\n\nNoted that this patch just fix the softlockup problem in kernel, the\ncase that bitmap size doesn't match array size still need to be fixed.","state":0,"publishedAt":"2024-06-19T13:45:47.309+00:00","modifiedAt":"2026-10-15T00:43:36.097+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 \"drivers/md/md-bitmap.c\"\n ],\n \"versions\": [\n {\n \"version\": \"374fb914304d9b500721007f3837ea8f1f9a2418\",\n \"lessThan\": \"d4b9c764d48fa41caa24cfb4275f3aa9fb4bd798\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b0b971fe7d61411ede63c3291764dbde1577ef2c\",\n \"lessThan\": \"43771597feba89a839c5f893716df88ae5c237ce\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"39fa14e824acfd470db4f42c354297456bd82b53\",\n \"lessThan\": \"3f5b73ef8fd6268cbc968b308d8eafe56fda97f3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a134dd582c0d5b6068efa308bd485cf1d00b3f65\",\n \"lessThan\": \"69296914bfd508c85935bf5f711cad9b0fe78492\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"be1a3ec63a840cc9e59a033acf154f56255699a1\",\n \"lessThan\": \"71e8e4f288e74a896b6d9cd194f3bab12bd7a10f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"301867b1c16805aebbc306aafa6ecdc68b73c7e5\",\n \"lessThan\": \"c9566b812c8f66160466cc1e29df6d3646add0b1\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"301867b1c16805aebbc306aafa6ecdc68b73c7e5\",\n \"lessThan\": \"5817f43ae1a118855676f57ef7ab50e37eac7482\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"301867b1c16805aebbc306aafa6ecdc68b73c7e5\",\n \"lessThan\": \"8bbc71315e0ae4bb7e37f8d43b915e1cb01a481b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"301867b1c16805aebbc306aafa6ecdc68b73c7e5\",\n \"lessThan\": \"f0e729af2eb6bee9eb58c4df1087f14ebaefe26b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"152bb26796ff054af50b2ee1b3ca56e364e4f61b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bea301c046110bf421a3ce153fb868cb8d618e90\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"4.19.291\",\n \"lessThan\": \"4.19.316\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.251\",\n \"lessThan\": \"5.4.278\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.188\",\n \"lessThan\": \"5.10.219\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.121\",\n \"lessThan\": \"5.15.161\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.39\",\n \"lessThan\": \"6.1.93\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.3.13\",\n \"lessThan\": \"6.4\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.4.4\",\n \"lessThan\": \"6.5\",\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 \"drivers/md/md-bitmap.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.5\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.5\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.19.316\",\n \"lessThanOrEqual\": \"4.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.278\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.219\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.161\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.93\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.33\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.8.12\",\n \"lessThanOrEqual\": \"6.8.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.9.3\",\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/d4b9c764d48fa41caa24cfb4275f3aa9fb4bd798","https://git.kernel.org/stable/c/43771597feba89a839c5f893716df88ae5c237ce","https://git.kernel.org/stable/c/3f5b73ef8fd6268cbc968b308d8eafe56fda97f3","https://git.kernel.org/stable/c/69296914bfd508c85935bf5f711cad9b0fe78492","https://git.kernel.org/stable/c/71e8e4f288e74a896b6d9cd194f3bab12bd7a10f","https://git.kernel.org/stable/c/c9566b812c8f66160466cc1e29df6d3646add0b1","https://git.kernel.org/stable/c/5817f43ae1a118855676f57ef7ab50e37eac7482","https://git.kernel.org/stable/c/8bbc71315e0ae4bb7e37f8d43b915e1cb01a481b","https://git.kernel.org/stable/c/f0e729af2eb6bee9eb58c4df1087f14ebaefe26b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-38598","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-38598","identifiers":["CVE-2024-38598"]},"retained":false,"historicalAffected":[]}],"coverage":[]}