Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

The vulnerability of the nfsd component in Linux operating systems, related to the assignment of NULL pointers, allows a hacker to trigger a service failure.

The vulnerability of the nfsd component in Linux operating systems is related to the assignment of NULL pointers. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2024-46697

In the Linux kernel, the following vulnerability has been resolved: nfsd: ensure that nfsd4fattrargs.context is zeroed out If nfsd4encodefattr4 ends up doing a "goto out" before we get to checking for the security label, then args.context will be set to uninitialized junk on the stack, which we'l...

CVE-2024-46696

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix potential UAF in nfsd4cbgetattrrelease Once we drop the delegation reference, the fields embedded in it are no longer safe to access. Do that last...

CVE-2024-46690

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd4deleggetattrconflict in presence of third party lease It is not safe to dereference fl-c.flcowner without first confirming fl-fllmops is the expected manager. nfsd4deleggetattrconflict tests fllmops but largely...

CVE-2024-46682

In the Linux kernel, the following vulnerability has been resolved: nfsd: prevent panic for nfsv4.0 closed files in nfs4showopen Prior to commit 3f29cc82a84c "nfsd: split scstatus out of sctype" statesshow relied on sctype field to be of valid type before calling into a subfunction to show conten...

CVE-2024-46696

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix potential UAF in nfsd4cbgetattrrelease Once we drop the delegation reference, the fields embedded in it are no longer safe to access. Do that last...

CVE-2024-46690

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd4deleggetattrconflict in presence of third party lease It is not safe to dereference fl-c.flcowner without first confirming fl-fllmops is the expected manager. nfsd4deleggetattrconflict tests fllmops but largely...

CVE-2024-46697 nfsd: ensure that nfsd4_fattr_args.context is zeroed out

In the Linux kernel, the following vulnerability has been resolved: nfsd: ensure that nfsd4fattrargs.context is zeroed out If nfsd4encodefattr4 ends up doing a "goto out" before we get to checking for the security label, then args.context will be set to uninitialized junk on the stack, which we'l...

CVE-2024-46696

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix potential UAF in nfsd4cbgetattrrelease Once we drop the delegation reference, the fields embedded in it are no longer safe to access. Do that last...

CVE-2024-46696 nfsd: fix potential UAF in nfsd4_cb_getattr_release

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix potential UAF in nfsd4cbgetattrrelease Once we drop the delegation reference, the fields embedded in it are no longer safe to access. Do that last...

CVE-2024-46697

In the Linux kernel, the following vulnerability has been resolved: nfsd: ensure that nfsd4fattrargs.context is zeroed out If nfsd4encodefattr4 ends up doing a "goto out" before we get to checking for the security label, then args.context will be set to uninitialized junk on the stack, which we'l...

CVE-2024-46697 nfsd: ensure that nfsd4_fattr_args.context is zeroed out

In the Linux kernel, the following vulnerability has been resolved: nfsd: ensure that nfsd4fattrargs.context is zeroed out If nfsd4encodefattr4 ends up doing a "goto out" before we get to checking for the security label, then args.context will be set to uninitialized junk on the stack, which we'l...

CVE-2024-46697

The CVE-2024-46697 issue in the Linux kernel’s nfsd path (nfsd4_fattr_args.context) is fixed: if a goto out path executes before security label checks, an uninitialized args.context on the stack could be freed. The mitigation is to zero/initialize args.context early, preventing a use-after-free/M...

CVE-2024-46697 nfsd: ensure that nfsd4_fattr_args.context is zeroed out

In the Linux kernel, the following vulnerability has been resolved: nfsd: ensure that nfsd4fattrargs.context is zeroed out If nfsd4encodefattr4 ends up doing a "goto out" before we get to checking for the security label, then args.context will be set to uninitialized junk on the stack, which we'l...

CVE-2024-46690 nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd4deleggetattrconflict in presence of third party lease It is not safe to dereference fl-c.flcowner without first confirming fl-fllmops is the expected manager. nfsd4deleggetattrconflict tests fllmops but largely...

CVE-2024-46690

The CVE-2024-46690 entry documents a Linux kernel issue in nfsd4_deleg_getattr_conflict when a third‑party lease manager is present. The vulnerability stemmed from unsafe dereference of fl->c.flc_owner without verifying fl->fl_lmops, causing incorrect handling of nfsd4_deleg_getattr_conflic...

CVE-2024-46690 nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd4deleggetattrconflict in presence of third party lease It is not safe to dereference fl-c.flcowner without first confirming fl-fllmops is the expected manager. nfsd4deleggetattrconflict tests fllmops but largely...

CVE-2024-46690 nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd4deleggetattrconflict in presence of third party lease It is not safe to dereference fl-c.flcowner without first confirming fl-fllmops is the expected manager. nfsd4deleggetattrconflict tests fllmops but largely...

CVE-2024-46690

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd4deleggetattrconflict in presence of third party lease It is not safe to dereference fl-c.flcowner without first confirming fl-fllmops is the expected manager. nfsd4deleggetattrconflict tests fllmops but largely...