1171 matches found
EUVD-2026-39218
In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: bail out on template ct in get eval I noticed this issue while looking at a historic syzbot report 1. A rule like the one below is enough to trigger the bug: table ip t chain pre type filter hook prerouting...
CVE-2026-53218
The vulnerability CVE-2026-53218 affects the Linux kernel netfilter nft_exthdr code. The root cause is in register tracking when the NFT_EXTHDR_F_PRESENT flag is used: nft_exthdr_init() passes user-controlled priv->len to nft_parse_register_store(), which marks that many bytes in the register ...
EUVD-2026-39309
In the Linux kernel, the following vulnerability has been resolved: netfilter: nftexthdr: fix register tracking for FPRESENT flag nftexthdrinit passes user-controlled priv-len to nftparseregisterstore, which marks that many bytes in the register bitmap as initialized. However, when...
CVE-2026-53218
In the Linux kernel, the following vulnerability has been resolved: netfilter: nftexthdr: fix register tracking for FPRESENT flag nftexthdrinit passes user-controlled priv-len to nftparseregisterstore, which marks that many bytes in the register bitmap as initialized. However, when...
EUVD-2026-39303
In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix use-after-free on object destroy nfttunnelobjdestroy calls metadatadstfree which directly kfrees the metadatadst, ignoring the dstentry refcount. Packets that took a reference via dsthold in...
CVE-2026-53211
In the Linux kernel fix for CVE-2026-53211, the vulnerability stems from netfilter nft_meta_bridge where NFT_META_BRI_IIFHWADDR declares a 6-byte destination register, which is rounded up to two 32-bit registers (8 bytes). nft_meta_bridge_get_eval() performs memcpy(dest, br_dev->dev_addr, ETH_...
CVE-2026-53211
In the Linux kernel, the following vulnerability has been resolved: netfilter: nftmetabridge: fix stale stack leak via IIFHWADDR register NFTMETABRIIIFHWADDR declares its destination register with len = ETHALEN 6 bytes, which the register-init tracking rounds up to two 32-bit registers 8 bytes...
CVE-2026-53134
In the Linux kernel, the following vulnerability has been resolved: netfilter: nftfib: fix stale stack leak via the OIFNAME register For NFTFIBRESULTOIFNAME the destination register is declared with len = IFNAMSIZ four 32-bit registers, but on the lookup-fail, RTNLOCAL and oif-mismatch paths...
Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15
This vulnerability allows local attackers to disclose sensitive information on affected installations of the Linux Kernel 6.0-rc2. An attacker must first gain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw resides within...
Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15
In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftsetrbtree: Fixed an issue with overlapping expiration walks. The lazy garbage collection during insertion, which should remove entries when the timeout occurs, fails to properly release the remaining part of the...
Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1
In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftct: sanitize layer 3 and 4 protocol numbers in custom expectations - Disallow families other than NFPROTOIPV4,IPV6,INET. - Disallow layer 4 protocols without ports, as the destination port is a mandatory attribut...
Astra Linux – Vulnerability in Linux 5.10
The nftablesnewset function in net/netfilter/nftablesapi.c in the Linux kernel before version 5.12.13 allows local users to cause a denial of service due to NULL pointer dereferencing and general protection faults, caused by the absence of initialization for nftsetelemexpralloc. A local user can...
Astra Linux – Vulnerability in Linux 5.10
In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: clonesetfence only affects the “flush” set The Syzbot triggered a failing memory allocation with GFPKERNEL, resulting in a WARN message: iter.err WARNING: net/netfilter/nftablesapi.c:845 at...
Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15
In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetpipapo: do not free live element Pablo reported a crash when processing large batches of elements with a back-to-back add/remove pattern. Quoting Pablo: addelem"00000000" timeout 100 ms ... addelem"0000000X"...
Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15
In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: The commit mutex should not be released during the critical section between nftgcseqBegin and nftgcseqEnd. Otherwise, the async GC worker could collect expired objects and obtain the released commit lock with...
Astra Linux – Vulnerability in Linux 6.1
In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: The issue of underflow in the chain reference counter was fixed. The error path of set element addition decremented the reference counter on chains twice—once when the element was released, and again throu...
Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10
In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftsetrbtree: fixed a null dereference issue when inserting elements There is no guarantee that rbprev will not return NULL in nftrbtreegcelem: General protection fault, likely due to an non-canonical address...
Astra Linux – Vulnerability in Linux
In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftlimit: avoided a possible division error in nftlimitinit divu64 divides an u64 value by an u32 value. nftlimitinit attempts to divide an u64 value by another u64 value; the appropriate math function div64u64 shou...
Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15
In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nfttunnel: fixed a type confusion issue with geneveopt. When handling multiple NFTATUNNELKEYOPTSGENEVE attributes, the parsing logic should process each geneveopt structure individually and compactly. Therefore, whe...
SUSE CVE-2026-46324
In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: use listdelrcu for netlink hooks nftnetdevunregisterhooks and nftunregisterflowtablenethooks need to use listdelrcu, this list can be walked by concurrent dumpers. Add a new helper and use it consistently...