partitions: mac: fix handling of bogus partition table
In the Linux kernel, the following vulnerability has been resolved: partitions: mac: fix handling of bogus partition table Fix several issues in partition probing: - The bailout for a bad partoffset must use put_dev_sector(), since the preceding read_part_sector() succeeded. - If the partition table claims a silly sector size like 0xfff bytes (which results in partition table entries straddling sector boundaries), bail out instead of accessing out-of-bounds memory. - We must not assume that the partition table contains proper NUL termination - use strnlen() and strncmp() instead of strlen() and strcmp().
CVE-2025-21772
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-21772
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
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"version": "02e2a5bfebe99edcf9d694575a75032d53fe1b73",
"lessThan": "a3e77da9f843e4ab93917d30c314f0283e28c124",
"versionType": "git"
},
{
"status": "affected",
"version": "02e2a5bfebe99edcf9d694575a75032d53fe1b73",
"lessThan": "213ba5bd81b7e97ac6e6190b8f3bc6ba76123625",
"versionType": "git"
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{
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"versionType": "git"
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{
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"versionType": "git"
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{
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"lessThan": "92527100be38ede924768f4277450dfe8a40e16b",
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{
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{
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{
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"lessThan": "80e648042e512d5a767da251d44132553fe04ae0",
"versionType": "git"
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{
"status": "affected",
"version": "81a319c5c29913a23947f3d28513974682f3af03",
"versionType": "git"
},
{
"status": "affected",
"version": "34a906cd9f6445d9510841667eff0d980279ebf3",
"versionType": "git"
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{
"status": "affected",
"version": "2a27f61bd411e564eb4651c18d225f6e9e1de534",
"versionType": "git"
},
{
"status": "affected",
"version": "69aad7e01c8e883e9d2f8dc5523bd419bd02d2aa",
"versionType": "git"
},
{
"status": "affected",
"version": "7f4f03c4a1e9a4b9679feafe7625a780864a4e76",
"versionType": "git"
},
{
"status": "affected",
"version": "3.2.75",
"lessThan": "3.3",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.4.113",
"lessThan": "3.5",
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},
{
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"versionType": "semver"
},
{
"status": "affected",
"version": "3.12.56",
"lessThan": "3.13",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.14.63",
"lessThan": "3.15",
"versionType": "semver"
}
],
"programFiles": [
"block/partitions/mac.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.4"
},
{
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"version": "0",
"lessThan": "4.4",
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{
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"version": "5.4.291",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
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{
"status": "unaffected",
"version": "5.10.235",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.179",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.129",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.79",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.16",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.4",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"block/partitions/mac.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-21772
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30430 · Revision 1
- Added to Heist Feed
- Publisher date