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cvelist/2024/38xxx/CVE-2024-38598.json
CVE Team 0b2e80d1f4
"-Synchronized-Data."
2024-11-05 10:01:48 +00:00

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{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-38598",
"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"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 <TASK>\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."
}
]
},
"problemtype": {
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{
"lang": "eng",
"value": "n/a"
}
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}
]
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
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"version_affected": "<",
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"version_value": "d4b9c764d48f"
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"version_name": "b0b971fe7d61",
"version_value": "43771597feba"
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"version_name": "39fa14e824ac",
"version_value": "3f5b73ef8fd6"
},
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},
{
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"version_name": "be1a3ec63a84",
"version_value": "71e8e4f288e7"
},
{
"version_affected": "<",
"version_name": "301867b1c168",
"version_value": "c9566b812c8f"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "6.5",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.5",
"status": "unaffected",
"versionType": "semver"
},
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"version": "4.19.316",
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"version": "5.10.219",
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},
{
"version": "5.15.161",
"lessThanOrEqual": "5.15.*",
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},
{
"version": "6.1.93",
"lessThanOrEqual": "6.1.*",
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},
{
"version": "6.6.33",
"lessThanOrEqual": "6.6.*",
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{
"version": "6.8.12",
"lessThanOrEqual": "6.8.*",
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"references": {
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