CVE-2026-23111

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix inverted genmask check in nftmapcatchallactivate nftmapcatchallactivate has an inverted element activity check compared to its non-catchall counterpart nftmapelemactivate and compared to what is logically...

CVE-2026-23111

CVE-2026-23111 (Linux kernel) : A bug in netfilter nf_tables nft_map_catchall_activate() inverted the genmask check, causing catchall elements to be processed incorrectly during abort of a DELSET operation. The function skipped inactive elements and processed active ones, leading to a use-after-f...

CVE-2026-23111 netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate()

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix inverted genmask check in nftmapcatchallactivate nftmapcatchallactivate has an inverted element activity check compared to its non-catchall counterpart nftmapelemactivate and compared to what is logically...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a logical error in the reverse generation mask check logic within the nftmapcatchallactivate...

Linux Distros Unpatched Vulnerability : CVE-2026-23111

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftables: fix inverted genmask check in nftmapcatchallactivate nftmapcatchallactivate has an inverted element activity check compared to its...

PT-2026-26583

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue within the netfilter subsystem related to nf tables. During transaction processing, multiple catchall elements may exist, including one active and one...

PT-2026-7991

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the nf tables component of the Linux kernel. The nft map catchall activate function contains a logic bug where an inverted element activity check is...

CVE-2025-50735

NextChat (versions up to 2.16.0) is affected by a directory traversal vulnerability in the WebDAV proxy, which fails to canonicalize or reject dot path segments in its catch-all route, potentially allowing an attacker to disclose sensitive information via authenticated or anonymous WebDAV endpoin...

EUVD-2023-54424

Malicious code in bioql PyPI...

kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation

A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFTCHAIN object or NFTOBJECT object, allowing a local...

kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation

A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFTCHAIN object or NFTOBJECT object, allowing a local...

CLSA-2024-1715000325 kernel: Fix of 25 CVEs

IB/hfi1: Fix bugs with non-PAGESIZE-end multi-iovec user SDMA requests CVE-2023-52474 - afunix: Fix null-ptr-deref in unixstreamsendpage. CVE-2023-4622 - sched/rt: picknextrtentity: check listentry CVE-2023-1077 - RDMA/irdma: Prevent zero-length STAG registration CVE-2023-25775 - block: add check...

kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation

A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFTCHAIN object or NFTOBJECT object, allowing a local...

SUSE CVE-2021-47106

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix use-after-free in nftsetcatchalldestroy We need to use listforeachentrysafe iterator because we can not access @catchall after kfreercu call. syzbot reported: BUG: KASAN: use-after-free in...

DEBIAN-CVE-2021-47106

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix use-after-free in nftsetcatchalldestroy We need to use listforeachentrysafe iterator because we can not access @catchall after kfreercu call. syzbot reported: BUG: KASAN: use-after-free in...

UBUNTU-CVE-2021-47106

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix use-after-free in nftsetcatchalldestroy We need to use listforeachentrysafe iterator because we can not access @catchall after kfreercu call. syzbot reported: BUG: KASAN: use-after-free in...

kernel: nf_tables: use-after-free vulnerability in the nft_setelem_catchall_deactivate() function

A double-free flaw was found in how the Linux kernel's NetFilter system marks whether a catch-all element is enabled. A local user could use this flaw to crash the system...

kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation

A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFTCHAIN object or NFTOBJECT object, allowing a local...

kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation

A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFTCHAIN object or NFTOBJECT object, allowing a local...

kernel: nf_tables: use-after-free vulnerability in the nft_setelem_catchall_deactivate() function

A double-free flaw was found in how the Linux kernel's NetFilter system marks whether a catch-all element is enabled. A local user could use this flaw to crash the system...