Linux Distros Unpatched Vulnerability : CVE-2026-89686

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent state...

CVE-2026-89716

A flaw was found in the zram component of the Linux kernel. This vulnerability occurs because the system does not properly validate user-supplied deflate parameters, specifically winbits values. An attacker could exploit this by providing malformed input, which would trigger an internal error BUG...

CVE-2026-89716

In the Linux kernel, the following vulnerability has been resolved: zram: validate deflate params We must validate user-supplied deflate winbits before we pass it to zlibdeflateworkspacesize, which triggers BUGON if winbits value is outside of valid ranges...

DEBIAN-CVE-2026-89686

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat...

AZL-100455 CVE-2026-89686 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat...

CVE-2026-89686

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat...

CVE-2026-89516

In the Linux kernel, the following vulnerability has been resolved: schedext: Don't BUGON a destroyed DSQ in processdeferredreenqusers scxbpfdsqreenq queues a deferred reenq dru that runs from rundeferred, not ops.dispatch. If the DSQ is destroyed before the dru runs, processdeferredreenqusers se...

AZL-100680 CVE-2026-89494 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate lengths in dlmmiglockreshandler A node receiving a DLMMIGLOCKRES message trusts several fields of the peer-supplied dlmmigratablelockres without validation. numlocks and locknamelen are bounded only on the sending...

CVE-2026-89716 zram: validate deflate params

In the Linux kernel, the following vulnerability has been resolved: zram: validate deflate params We must validate user-supplied deflate winbits before we pass it to zlibdeflateworkspacesize, which triggers BUGON if winbits value is outside of valid ranges...

CVE-2026-89716

CVE-2026-89716 affects the Linux kernel's zram module. User-supplied deflate winbits are passed to zlib_deflate_workspacesize() without validation; if the value falls outside the valid range, a BUG_ON() is triggered, resulting in a kernel bug/panic. The fix validates the winbits parameter before ...

EUVD-2026-76628

In the Linux kernel, the following vulnerability has been resolved: zram: validate deflate params We must validate user-supplied deflate winbits before we pass it to zlibdeflateworkspacesize, which triggers BUGON if winbits value is outside of valid ranges...

CVE-2026-89716 zram: validate deflate params

In the Linux kernel, the following vulnerability has been resolved: zram: validate deflate params We must validate user-supplied deflate winbits before we pass it to zlibdeflateworkspacesize, which triggers BUGON if winbits value is outside of valid ranges...

CVE-2026-89686 nfsd: fix BUG_ON in nfsd4_alloc_layout_stateid on racing delegation revoke

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat...

CVE-2026-89686

CVE-2026-89686 is a race condition in the Linux kernel's nfsd (NFSv4 daemon). The function nfsd4_alloc_layout_stateid reads fp->fi_deleg_file without holding fi_lock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat can clear that field, causing nfsd_fi...

CVE-2026-89686

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat...

CVE-2026-89686 nfsd: fix BUG_ON in nfsd4_alloc_layout_stateid on racing delegation revoke

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat...

EUVD-2026-76598

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat...

EUVD-2026-76569

In the Linux kernel, the following vulnerability has been resolved: libceph: validate OSD extent maps before cursor advance net/ceph/osdclient.c:osdsparseread validates that the sparse-read data length matches the summed extent lengths, but it does not validate that each OSD-supplied extent is...

EUVD-2026-76422

In the Linux kernel, the following vulnerability has been resolved: schedext: Don't BUGON a destroyed DSQ in processdeferredreenqusers scxbpfdsqreenq queues a deferred reenq dru that runs from rundeferred, not ops.dispatch. If the DSQ is destroyed before the dru runs, processdeferredreenqusers se...

CVE-2026-89516

This CVE affects the Linux kernel in the sched_ext (scheduling extensions) subsystem. The vulnerability occurs in process_deferred_reenq_users(): when scx_bpf_dsq_reenq() queues a deferred reenqueue that executes from run_deferred() (not ops.dispatch()), and the associated DSQ (dispatch queue) is...