In the Linux kernel, the following vulnerability has been resolved:
net: qrtr: fix OOB Read in qrtr_endpoint_post
Syzbot reported slab-out-of-bounds Read in
qrtr_endpoint_post. The problem was in wrong
size type:
if (len != ALIGN(size, 4) + hdrlen)
goto err;
If size from qrtr_hdr is 4294967293 (0xfffffffd), the result of
ALIGN(size, 4) will be 0. In case of len == hdrlen and size == 4294967293
in header this check won’t fail and
skb_put_data(skb, data + hdrlen, size);
will read out of bound from data, which is hdrlen allocated block.
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/qrtr/qrtr.c"
],
"versions": [
{
"version": "194ccc88297a",
"lessThan": "f8111c0d7ed4",
"status": "affected",
"versionType": "git"
},
{
"version": "194ccc88297a",
"lessThan": "26b8d10703a9",
"status": "affected",
"versionType": "git"
},
{
"version": "194ccc88297a",
"lessThan": "960b08dd36de",
"status": "affected",
"versionType": "git"
},
{
"version": "194ccc88297a",
"lessThan": "19892ab9c9d8",
"status": "affected",
"versionType": "git"
},
{
"version": "194ccc88297a",
"lessThan": "ad9d24c9429e",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/qrtr/qrtr.c"
],
"versions": [
{
"version": "4.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.15",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "4.19.196",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.4.128",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.46",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.12.13",
"lessThanOrEqual": "5.12.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.13",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe
git.kernel.org/stable/c/26b8d10703a9be45d6097946b2b4011f7dd2c56f
git.kernel.org/stable/c/960b08dd36de1e341e3eb43d1c547513e338f4f8
git.kernel.org/stable/c/ad9d24c9429e2159d1e279dc3a83191ccb4daf1d
git.kernel.org/stable/c/f8111c0d7ed42ede41a3d0d393b104de0730a8a6