CVE-2024-35910

In the Linux kernel, the following vulnerability has been resolved: tcp: properly terminate timers for kernel sockets We had various syzbot reports about tcp timers firing after the corresponding netns has been dismantled. Fortunately Josef Bacik could trigger the issue more often, and could test...

CVE-2024-35934 net/smc: reduce rtnl pressure in smc_pnet_create_pnetids_list()

In the Linux kernel, the following vulnerability has been resolved: net/smc: reduce rtnl pressure in smcpnetcreatepnetidslist Many syzbot reports show extreme rtnl pressure, and many of them hint that smc acquires rtnl in netns creation for no good reason 1 This patch returns early from...

CVE-2024-35934

The CVE-2024-35934 issue affects the Linux kernel net/smc subsystem. Affected component: smc_pnet-related code in net/smc (pnet IDs list creation). Root cause: excessive RTNL (rtnl) lock pressure during net namespace/pnet initialization, caused by smc_pnet_create_pnetids_list() acquiring rtnl in ...

CVE-2024-35910

In the Linux kernel, the following vulnerability has been resolved: tcp: properly terminate timers for kernel sockets We had various syzbot reports about tcp timers firing after the corresponding netns has been dismantled. Fortunately Josef Bacik could trigger the issue more often, and could test...

CVE-2024-35884

In the Linux kernel, the following vulnerability has been resolved: udp: do not accept non-tunnel GSO skbs landing in a tunnel When rx-udp-gro-forwarding is enabled UDP packets might be GROed when being forwarded. If such packets might land in a tunnel this can cause various issues and...

CVE-2024-35884

In the Linux kernel, the following vulnerability has been resolved: udp: do not accept non-tunnel GSO skbs landing in a tunnel When rx-udp-gro-forwarding is enabled UDP packets might be GROed when being forwarded. If such packets might land in a tunnel this can cause various issues and...

CVE-2024-35910 tcp: properly terminate timers for kernel sockets

In the Linux kernel, the following vulnerability has been resolved: tcp: properly terminate timers for kernel sockets We had various syzbot reports about tcp timers firing after the corresponding netns has been dismantled. Fortunately Josef Bacik could trigger the issue more often, and could test...

CVE-2024-35910 tcp: properly terminate timers for kernel sockets

In the Linux kernel, the following vulnerability has been resolved: tcp: properly terminate timers for kernel sockets We had various syzbot reports about tcp timers firing after the corresponding netns has been dismantled. Fortunately Josef Bacik could trigger the issue more often, and could test...

CVE-2024-35910

The CVE-2024-35910 issue affects the Linux kernel TCP timer handling for kernel sockets. Root cause: inet_csk_clear_xmit_timers() could be invoked with the socket lock held and uses del_timer(), risking timers running after the netns is freed. Fix: introduced inet_csk_clear_xmit_timers_sync() usi...

CVE-2024-35884 udp: do not accept non-tunnel GSO skbs landing in a tunnel

In the Linux kernel, the following vulnerability has been resolved: udp: do not accept non-tunnel GSO skbs landing in a tunnel When rx-udp-gro-forwarding is enabled UDP packets might be GROed when being forwarded. If such packets might land in a tunnel this can cause various issues and...

CVE-2024-35884 udp: do not accept non-tunnel GSO skbs landing in a tunnel

In the Linux kernel, the following vulnerability has been resolved: udp: do not accept non-tunnel GSO skbs landing in a tunnel When rx-udp-gro-forwarding is enabled UDP packets might be GROed when being forwarded. If such packets might land in a tunnel this can cause various issues and...

CVE-2024-35884

CVE-2024-35884 is a Linux kernel vulnerability in UDP GRO handling. When rx-udp-gro-forwarding is enabled, UDP packets may be GROed in transit and land in a tunnel, causing issues such as corrupted packets or kernel crashes (geneve path example). The root cause is that udp_gro_receive/udp4/udp6_g...

CVE-2024-27397

A use-after-free flaw was found in the Linux kernel’s netfilter subsystem in how a user triggers the element timeout. This flaw allows a local user to crash or potentially escalate their privileges on the system. Mitigation In order to trigger the issue, it requires the ability to create user/net...

AZL-40679 CVE-2024-27397 affecting package hyperv-daemons for versions less than 5.15.158.2-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: use timestamp to check for set element timeout Add a timestamp field at the beginning of the transaction, store it in the nftables per-netns area. Update set backend .insert, .deactivate and sync gc path to u...

AZL-40546 CVE-2024-27397 affecting package hyperv-daemons for versions less than 6.6.56.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: use timestamp to check for set element timeout Add a timestamp field at the beginning of the transaction, store it in the nftables per-netns area. Update set backend .insert, .deactivate and sync gc path to u...

PT-2025-13345 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to the fixed version Description: A use-after-free UaF issue has been identified in the Linux kernel's netns ops registration error path. When net assign generic fails, the error path in ops init attempts to clear...

CVE-2024-26865

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: Fix use-after-free of net in reqsktimerhandler. syzkaller reported a warning of netns tracker 0 followed by KASAN splat 1 and another ref tracker warning 1. syzkaller could not find a repro, but in the log, the only...

CVE-2024-26865

CVE-2024-26865 involves a use-after-free in the Linux kernel’s RDS TCP path (reqsk_timer_handler) that can occur when a per-netns listener is created, a reqsk is formed, the process exits, and the netns is dismantled before the timer expires. The issue is fixed by a patch (commit 740ea3c4a0b2) wh...

DEBIAN-CVE-2021-47010

In the Linux kernel, the following vulnerability has been resolved: net: Only allow init netns to set default tcp cong to a restricted algo tcpsetdefaultcongestioncontrol is netns-safe in that it writes to &net-ipv4.tcpcongestioncontrol, but it also sets ca-flags |= TCPCONGNONRESTRICTED which is...

CVE-2021-47010

In the Linux kernel, the following vulnerability has been resolved: net: Only allow init netns to set default tcp cong to a restricted algo tcpsetdefaultcongestioncontrol is netns-safe in that it writes to &net-ipv4.tcpcongestioncontrol, but it also sets ca-flags |= TCPCONGNONRESTRICTED which is...