CVE-2024-38598 (GCVE-0-2024-38598)
Vulnerability from cvelistv5
Published
2024-06-19 13:45
Modified
2025-11-04 17:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: md: fix resync softlockup when bitmap size is less than array size Is is reported that for dm-raid10, lvextend + lvchange --syncaction will trigger following softlockup: kernel:watchdog: BUG: soft lockup - CPU#3 stuck for 26s! [mdX_resync:6976] CPU: 7 PID: 3588 Comm: mdX_resync Kdump: loaded Not tainted 6.9.0-rc4-next-20240419 #1 RIP: 0010:_raw_spin_unlock_irq+0x13/0x30 Call Trace: <TASK> md_bitmap_start_sync+0x6b/0xf0 raid10_sync_request+0x25c/0x1b40 [raid10] md_do_sync+0x64b/0x1020 md_thread+0xa7/0x170 kthread+0xcf/0x100 ret_from_fork+0x30/0x50 ret_from_fork_asm+0x1a/0x30 And the detailed process is as follows: md_do_sync j = mddev->resync_min while (j < max_sectors) sectors = raid10_sync_request(mddev, j, &skipped) if (!md_bitmap_start_sync(..., &sync_blocks)) // md_bitmap_start_sync set sync_blocks to 0 return sync_blocks + sectors_skippe; // sectors = 0; j += sectors; // j never change Root cause is that commit 301867b1c168 ("md/raid10: check slab-out-of-bounds in md_bitmap_get_counter") return early from md_bitmap_get_counter(), without setting returned blocks. Fix this problem by always set returned blocks from md_bitmap_get_counter"(), as it used to be. Noted that this patch just fix the softlockup problem in kernel, the case that bitmap size doesn't match array size still need to be fixed.
References
Impacted products
Vendor Product Version
Linux Linux Version: 374fb914304d9b500721007f3837ea8f1f9a2418
Version: b0b971fe7d61411ede63c3291764dbde1577ef2c
Version: 39fa14e824acfd470db4f42c354297456bd82b53
Version: a134dd582c0d5b6068efa308bd485cf1d00b3f65
Version: be1a3ec63a840cc9e59a033acf154f56255699a1
Version: 301867b1c16805aebbc306aafa6ecdc68b73c7e5
Version: 301867b1c16805aebbc306aafa6ecdc68b73c7e5
Version: 301867b1c16805aebbc306aafa6ecdc68b73c7e5
Version: 301867b1c16805aebbc306aafa6ecdc68b73c7e5
Version: 152bb26796ff054af50b2ee1b3ca56e364e4f61b
Version: bea301c046110bf421a3ce153fb868cb8d618e90
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\"unaffected\", \"version\": \"6.6.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/md/md-bitmap.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/d4b9c764d48fa41caa24cfb4275f3aa9fb4bd798\"}, {\"url\": \"https://git.kernel.org/stable/c/43771597feba89a839c5f893716df88ae5c237ce\"}, {\"url\": \"https://git.kernel.org/stable/c/3f5b73ef8fd6268cbc968b308d8eafe56fda97f3\"}, {\"url\": \"https://git.kernel.org/stable/c/69296914bfd508c85935bf5f711cad9b0fe78492\"}, {\"url\": \"https://git.kernel.org/stable/c/71e8e4f288e74a896b6d9cd194f3bab12bd7a10f\"}, {\"url\": \"https://git.kernel.org/stable/c/c9566b812c8f66160466cc1e29df6d3646add0b1\"}, {\"url\": \"https://git.kernel.org/stable/c/5817f43ae1a118855676f57ef7ab50e37eac7482\"}, {\"url\": \"https://git.kernel.org/stable/c/8bbc71315e0ae4bb7e37f8d43b915e1cb01a481b\"}, {\"url\": \"https://git.kernel.org/stable/c/f0e729af2eb6bee9eb58c4df1087f14ebaefe26b\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"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 \u003cTASK\u003e\\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-\u003eresync_min\\n while (j \u003c max_sectors)\\n  sectors = raid10_sync_request(mddev, j, \u0026skipped)\\n   if (!md_bitmap_start_sync(..., \u0026sync_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\u0027t match array size still need to be fixed.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.316\", \"versionStartIncluding\": \"4.19.291\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.278\", \"versionStartIncluding\": \"5.4.251\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.219\", \"versionStartIncluding\": \"5.10.188\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.161\", \"versionStartIncluding\": \"5.15.121\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.93\", \"versionStartIncluding\": \"6.1.39\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.33\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.12\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.3\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"6.5\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.3.13\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.4.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:56:50.770Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-38598\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-04T17:21:42.119Z\", \"dateReserved\": \"2024-06-18T19:36:34.932Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-19T13:45:47.309Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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