CVE-2022-49456

CVE-2022-49456 affects the Linux kernel bonding path. The root cause was removal of the rcu_read_lock in bond_ethtool_get_ts_info(), which could be invoked via setsockopt (not holding the RCU lock), enabling a local-privilege/ information-exposure risk as demonstrated by the syzbot trace. The fix...

CVE-2022-49456 bonding: fix missed rcu protection

In the Linux kernel, the following vulnerability has been resolved: bonding: fix missed rcu protection When removing the rcureadlock in bondethtoolgettsinfo as discussed 1, I didn't notice it could be called via setsockopt, which doesn't hold rcu lock, as syzbot pointed: stack backtrace: CPU: 0...

CVE-2022-49456

In the Linux kernel, the following vulnerability has been resolved: bonding: fix missed rcu protection When removing the rcureadlock in bondethtoolgettsinfo as discussed 1, I didn't notice it could be called via setsockopt, which doesn't hold rcu lock, as syzbot pointed: stack backtrace: CPU: 0...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: Fixed a potential race condition in fib6 Droppcpufrom. syzbot detected a race condition in fib6 Droppcpufrom 1. If the compiler reads the value more than once ppcpurt, the second reading might result in NULL, especially ...

PT-2025-8871

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A potential issue in the Linux kernel has been identified, related to the igmp6 send function. This function can be called without the necessary synchronization, potentially leading to a...

PT-2025-8872

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved. The issue is related to the ndisc send skb function, which can be called without RTNL or RCU held, potentially leading to a...

CVE-2024-57875

In the Linux kernel, the following vulnerability has been resolved: block: RCU protect disk-convzonesbitmap Ensure that a disk revalidation changing the conventional zones bitmap of a disk does not cause invalid memory references when using the diskzoneisconv helper by RCU protecting the...

UBUNTU-CVE-2024-57875

In the Linux kernel, the following vulnerability has been resolved: block: RCU protect disk-convzonesbitmap Ensure that a disk revalidation changing the conventional zones bitmap of a disk does not cause invalid memory references when using the diskzoneisconv helper by RCU protecting the...

CVE-2024-57875

Summary of CVE-2024-57875 (Linux kernel): A block-layer memory-reference issue was resolved by ensuring proper RC(U) protection when a disk’s conventional-zones bitmap is updated. The fix adds RCU-aware handling around disk->conv_zones_bitmap access: disk_zone_is_conv() now operates under the ...

CVE-2024-57875 block: RCU protect disk->conv_zones_bitmap

In the Linux kernel, the following vulnerability has been resolved: block: RCU protect disk-convzonesbitmap Ensure that a disk revalidation changing the conventional zones bitmap of a disk does not cause invalid memory references when using the diskzoneisconv helper by RCU protecting the...

CVE-2024-57875 block: RCU protect disk->conv_zones_bitmap

In the Linux kernel, the following vulnerability has been resolved: block: RCU protect disk-convzonesbitmap Ensure that a disk revalidation changing the conventional zones bitmap of a disk does not cause invalid memory references when using the diskzoneisconv helper by RCU protecting the...

CVE-2024-56558 nfsd: make sure exp active before svc_export_show

In the Linux kernel, the following vulnerability has been resolved: nfsd: make sure exp active before svcexportshow The function eshow was called with protection from RCU. This only ensures that exp will not be freed. Therefore, the reference count for exp can drop to zero, which will trigger a...

Security update for the Linux Kernel (Live Patch 46 for SLE 15 SP2)

This update for the Linux Kernel 5.3.18-15020024183 fixes several issues. The following security issues were fixed: CVE-2024-35861: Fixed potential UAF in cifssignalcifsdforreconnect bsc1225312. CVE-2021-47291: ipv6: fix another slab-out-of-bounds in fib6nhflushexceptions bsc1227651...

DEBIAN-CVE-2024-46801

In the Linux kernel, the following vulnerability has been resolved: libfs: fix getstasheddentry getstasheddentry tries to optimistically retrieve a stashed dentry from a provided location. It needs to ensure to hold rcu lock before it dereference the stashed location to prevent UAF issues. Use...

SUSE CVE-2024-44974

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: avoid possible UaF when selecting endp selectlocaladdress and selectsignaladdress both select an endpoint entry from the list inside an RCU protected section, but return a reference to it, to be read later on. If the...

CVE-2024-44974 mptcp: pm: avoid possible UaF when selecting endp

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: avoid possible UaF when selecting endp selectlocaladdress and selectsignaladdress both select an endpoint entry from the list inside an RCU protected section, but return a reference to it, to be read later on. If the...

CVE-2024-40905

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible race in fib6droppcpufrom syzbot found a race in fib6droppcpufrom 1 If compiler reads more than once ppcpurt, second read could read NULL, if another cpu clears the value in rt6getpcpuroute. Add a READONCE to...

CVE-2024-40905

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible race in fib6droppcpufrom syzbot found a race in fib6droppcpufrom 1 If compiler reads more than once ppcpurt, second read could read NULL, if another cpu clears the value in rt6getpcpuroute. Add a READONCE to...

DEBIAN-CVE-2024-40905

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible race in fib6droppcpufrom syzbot found a race in fib6droppcpufrom 1 If compiler reads more than once ppcpurt, second read could read NULL, if another cpu clears the value in rt6getpcpuroute. Add a READONCE to...

CVE-2024-40905 ipv6: fix possible race in __fib6_drop_pcpu_from()

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible race in fib6droppcpufrom syzbot found a race in fib6droppcpufrom 1 If compiler reads more than once ppcpurt, second read could read NULL, if another cpu clears the value in rt6getpcpuroute. Add a READONCE to...