In the Linux kernel, the following vulnerability has been resolved:
null_blk: fix validation of block size
Block size should be between 512 and PAGE_SIZE and be a power of 2. The current
check does not validate this, so update the check.
Without this patch, null_blk would Oops due to a null pointer deref when
loaded with bs=1536 [1].
[axboe: remove unnecessary braces and != 0 check]
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/block/null_blk/main.c"
],
"versions": [
{
"version": "1da177e4c3f4",
"lessThan": "9625afe1dd4a",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f4",
"lessThan": "9b873bdaae64",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f4",
"lessThan": "2772ed2fc075",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f4",
"lessThan": "08f03186b96e",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f4",
"lessThan": "f92409a9da02",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f4",
"lessThan": "c462ecd659b5",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/block/null_blk/main.c"
],
"versions": [
{
"version": "5.10.223",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.164",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.1.101",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6.42",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.9.11",
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.10",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/08f03186b96e25e3154916a2e70732557c770ea7
git.kernel.org/stable/c/2772ed2fc075eef7df3789906fc9dae01e4e132e
git.kernel.org/stable/c/9625afe1dd4a158a14bb50f81af9e2dac634c0b1
git.kernel.org/stable/c/9b873bdaae64bddade9d8c6df23c8a31948d47d0
git.kernel.org/stable/c/c462ecd659b5fce731f1d592285832fd6ad54053
git.kernel.org/stable/c/f92409a9da02f27d05d713bff5f865e386cef9b3