In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get()
nft_unregister_obj() can concurrent with __nft_obj_type_get(),
and there is not any protection when iterate over nf_tables_objects
list in __nft_obj_type_get(). Therefore, there is potential data-race
of nf_tables_objects list entry.
Use list_for_each_entry_rcu() to iterate over nf_tables_objects
list in __nft_obj_type_get(), and use rcu_read_lock() in the caller
nft_obj_type_get() to protect the entire type query process.
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"versions": [
{
"version": "e50092404c1b",
"lessThan": "cade34279c22",
"status": "affected",
"versionType": "git"
},
{
"version": "e50092404c1b",
"lessThan": "379bf7257bc5",
"status": "affected",
"versionType": "git"
},
{
"version": "e50092404c1b",
"lessThan": "df7c0fb8c2b9",
"status": "affected",
"versionType": "git"
},
{
"version": "e50092404c1b",
"lessThan": "ad333578f736",
"status": "affected",
"versionType": "git"
},
{
"version": "e50092404c1b",
"lessThan": "4ca946b19caf",
"status": "affected",
"versionType": "git"
},
{
"version": "e50092404c1b",
"lessThan": "d78d867dcea6",
"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/netfilter/nf_tables_api.c"
],
"versions": [
{
"version": "4.10",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.10",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.219",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.157",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.1.88",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6.29",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.8.8",
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.9",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/379bf7257bc5f2a1b1ca8514e08a871b7bf6d920
git.kernel.org/stable/c/4ca946b19caf655a08d5e2266d4d5526025ebb73
git.kernel.org/stable/c/ad333578f736d56920e090d7db1f8dec891d815e
git.kernel.org/stable/c/cade34279c2249eafe528564bd2e203e4ff15f88
git.kernel.org/stable/c/d78d867dcea69c328db30df665be5be7d0148484
git.kernel.org/stable/c/df7c0fb8c2b9f9cac65659332581b19682a71349