In the Linux kernel, the following vulnerability has been resolved:
erofs: fix memory leak of LZMA global compressed deduplication
When stressing microLZMA EROFS images with the new global compressed
deduplication feature enabled (-Ededupe
), I found some short-lived
temporary pages weren’t properly released, which could slowly cause
unexpected OOMs hours later.
Let’s fix it now (LZ4 and DEFLATE don’t have this issue.)
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/erofs/decompressor_lzma.c"
],
"versions": [
{
"version": "5c2a64252c5d",
"lessThan": "6a5a8f0a9740",
"status": "affected",
"versionType": "git"
},
{
"version": "5c2a64252c5d",
"lessThan": "c955751cbf86",
"status": "affected",
"versionType": "git"
},
{
"version": "5c2a64252c5d",
"lessThan": "75a5221630fe",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/erofs/decompressor_lzma.c"
],
"versions": [
{
"version": "6.1",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.1",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.1.57",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.5.7",
"lessThanOrEqual": "6.5.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]