🚨 CVE-2026-89764
In the Linux kernel, the following vulnerability has been resolved:

rust: devres: fix race between concurrent revokers

There is a potential race condition when two paths try to revoke a
Devres concurrently.

The driver core's devres_release_all() calls Revocable::revoke() via the
release callback, while Devres::drop() calls revoke_nosync() on another
CPU.

The revoker that does not claim the is_available swap returns
immediately, but the revoker that did may still be executing
drop_in_place() on the inner data. This can cause a use-after-free when
the other revoker's caller proceeds to drop adjacent resources that
drop_in_place() still references (e.g., Devres<DmaMappedSgt> racing with
SGTable freeing the backing sg_table and pages).

Fix this by adding a Completion. The release callback signals the
Completion after revoke() finishes, and Devres::drop() waits for it when
it loses the is_available swap. This ensures the wrapped object is fully
torn down before Devres::drop() returns.

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🚨 CVE-2026-89765
In the Linux kernel, the following vulnerability has been resolved:

timers/itimer: Zero-init old itimerval before copy to userspace

On native sparc64, struct __kernel_old_timeval contains a four-byte hole
after tv_usec because tv_sec is 64-bit while __kernel_suseconds_t is 32-bit.
put_itimerval() fills only the named fields in a stack-allocated
__kernel_old_itimerval and copies the entire object to userspace, so
getitimer() can expose the two padding holes.

Zero-initialize the aggregate before assigning the fields so implicit
padding is deterministic before it crosses the user/kernel boundary.

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🚨 CVE-2026-89767
In the Linux kernel, the following vulnerability has been resolved:

ovl: fix double end_creating() on the casefold-mismatch path

ovl_create_real() releases the new dentry twice when the casefold
consistency check fails. The S_IFDIR branch calls end_creating() and
sets err, then falls through to the common out: label which calls
end_creating() on the same dentry again:

case S_IFDIR:
newdentry = ovl_do_mkdir(ofs, dir, newdentry, attr->mode);
err = PTR_ERR_OR_ZERO(newdentry);
if (!err && ofs->casefold != ovl_dentry_casefolded(newdentry)) {
pr_warn_ratelimited(...);
end_creating(newdentry); /* first */
err = -EINVAL;
}
break;
...
if (err)
goto out;
...
out:
if (err) {
end_creating(newdentry); /* second, same dentry */
return ERR_PTR(err);
}

end_creating() is end_dirop(), which does inode_unlock() on the parent
and dput() on the dentry, so the parent directory's i_rwsem is unlocked
twice and the dentry is put twice. The second unlock releases a lock
that is not held, which is what wedges every later creation under that
parent, and the second dput() drops a reference that was never taken.

The branch was added by commit dfc7da402ccc ("ovl: Check for casefold
consistency when creating new dentries") as a bare dput(), which already
released the reference twice; commit fe497f0759e0 ("VFS: change
vfs_mkdir() to unlock on failure.") converted both sites to
end_creating(), adding the double unlock.

This is reachable by an unprivileged user. The casefold consistency of
the layers is validated at mount time in ovl_parse_layer(), and again on
every lookup in ovl_lookup_single(), but ofs->workdir is the internal
"work" subdirectory created inside the user-supplied workdir, and that
subdirectory is not re-checked. Marking it casefolded after the mount
therefore makes every ovl_create_temp() inherit the wrong state - and
that path reaches ovl_create_real() through ovl_start_creating_temp(),
which uses start_creating() with a generated name and so never runs the
lookup-time check.

unshare -Urm
mount -t tmpfs -o casefold=utf8-12.1.0 tmpfs mnt
mkdir -p mnt/lower/d mnt/upper mnt/work mnt/merged
mount -t overlay ovl -o lowerdir=mnt/lower,\
upperdir=mnt/upper,workdir=mnt/work mnt/merged
chattr +F mnt/work/work
mkdir mnt/merged/d/sub # directory copy-up

overlayfs: wrong inherited casefold (work/#5)

and the next copy-up blocks forever on the parent's i_rwsem:

mkdir D start_creating+0x65/0xb0
ovl_start_creating_temp+0xb0/0xe0 [overlay]
ovl_create_temp+0xa3/0x1d0 [overlay]
ovl_copy_up_one+0x1f1c/0x21c0 [overlay]
ovl_copy_up_flags+0xf5/0x140 [overlay]
ovl_create_object+0xb7/0x220 [overlay]
ovl_mkdir+0x23/0x40 [overlay]

Drop the end_creating() from the branch and let out: own the cleanup,
which is what every other error path in this function already does.

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🚨 CVE-2026-89771
In the Linux kernel, the following vulnerability has been resolved:

ring-buffer: Fix subbuf resize race with ring buffer readers

trace_buffer subbuf_size is read lockless in ring_buffer_read_page() and
ring_buffer_read_start(), while it can simultaneously be resized with
ring_buffer_subbuf_order_set().

Instead of trace_buffer::subbuf_size, use bpage::order in
ring_buffer_read_start() and ring_buffer_read_page().

In ring_buffer_read_start(), even with resize_disabled, there is still a
possibility of a race with a buffer modification. Hold the trace_buffer
mutex to synchronise with any pending ring buffer order modification.

trace_buffer::subbuf_size is now actually useless, remove it. Also,
create accessors rb_subbuf_capacity() and rb_page_capacity() which
return the actual size available for storing events, while
rb_subbuf_size() returns the actual subbuf page-size.

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🚨 CVE-2026-89773
In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Skip Update HDCP Config In Transition State

Transition state does not have a valid dm_stream_ctx that should skip
configuring HDCP routine. The routine is valid to go through only when
a valid stream is created.

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🚨 CVE-2026-90498
A vulnerability was identified in lenve vhr 1.0-SNAPSHOT. Affected by this issue is some unknown functionality of the file vhr.sql. The manipulation leads to use of default credentials. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

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🚨 CVE-2026-90499
A security flaw has been discovered in lenve vhr 1.0-SNAPSHOT. This affects the function HrInfoController.updatePass of the file /hr/pass of the component Password Update Handler. The manipulation of the argument hrid results in improper authorization. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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🚨 CVE-2026-90500
A weakness has been identified in lenve vhr 1.0-SNAPSHOT. This vulnerability affects the function FastDFSUtils.upload of the file /hr/userface of the component Avatar Upload. This manipulation of the argument File causes unrestricted upload. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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🚨 CVE-2026-90501
A security vulnerability has been detected in lenve vhr 1.0-SNAPSHOT. This issue affects the function HrInfoController.updateHr of the file HrMapper.xml. Such manipulation of the argument Password leads to improper privilege management. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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🚨 CVE-2026-90502
A vulnerability was detected in stilleshan ServerStatus 1.0/2.0. Impacted is an unknown function of the file server/src/main.cpp of the component Stats Generation. Performing a manipulation of the argument custom results in cross site scripting. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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🚨 CVE-2026-90503
A flaw has been found in Chengdu Qilu Technology Ludashi 6.1026.4715.714. The affected element is the function sub_11008 in the library ComputerZ_x64.sys. Executing a manipulation of the argument PhysicalAddress can lead to information disclosure. The attack needs to be launched locally. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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🚨 CVE-2026-90504
A vulnerability has been found in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. The impacted element is the function authorized. The manipulation of the argument SECRET_KEY leads to missing authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

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🚨 CVE-2026-90505
A vulnerability was found in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. This affects the function doUpdateLicenseKey. The manipulation results in race condition. The attack can be launched remotely. The attack requires a high level of complexity. The exploitability is reported as difficult. The exploit has been made public and could be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

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🚨 CVE-2026-90506
A vulnerability was determined in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. This impacts an unknown function of the component Save Account Job. This manipulation causes race condition. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is said to be difficult. The exploit has been publicly disclosed and may be utilized. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

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🚨 CVE-2026-90507
A vulnerability was identified in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. Affected is the function get_surge_subscription of the file services/subscription.py of the component Subscription Handler. Such manipulation of the argument key leads to improper access controls. The attack may be launched remotely. The exploit is publicly available and might be used. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

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🚨 CVE-2026-90508
A security flaw has been discovered in Chengdu Qilu Technology Ludashi 6.1026.4715.714. Affected by this vulnerability is the function MessageNotifyCallback in the library ProtectFilter64.sys of the component Message Dispatch Handler. Performing a manipulation results in missing authorization. Attacking locally is a requirement. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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🚨 CVE-2026-90509
A weakness has been identified in dromara orion-visor up to 2.5.7. Affected by this issue is the function ExposeApiAspect.beforeExposeApi of the file ExposeApiAspect.java. Executing a manipulation can lead to hard-coded credentials. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

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🚨 CVE-2026-77773
The Contact Form to Chat Apps | Click to Chat to Order WordPress plugin before 2.15.8 does not perform any capability, nonce or session check on one of its public AJAX actions, allowing unauthenticated users to read the submitted entries of any form created with a supported third-party form Contact Form to Chat Apps | Click to Chat to Order WordPress plugin before 2.15.8.

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🚨 CVE-2026-80071
The User Registration & Membership WordPress plugin before 5.2.8 does not properly restrict who may author a membership plan or validate the plan a user attaches to their own account, allowing authenticated users with Author-level access and above to assign themselves an arbitrary role and escalate their privileges to Administrator.

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🚨 CVE-2026-80072
The User Registration & Membership WordPress plugin before 5.2.8 does not validate the destination of a post-login redirect before redirecting, allowing unauthenticated attackers to redirect visitors to an arbitrary external URL, which can be abused for phishing.

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🚨 CVE-2026-86406
The User Registration & Membership WordPress plugin before 5.2.8 does not check the capability of the user making a membership purchase, and does not validate the payment method or the plan submitted with it, allowing any authenticated user such as a subscriber to be granted the WordPress role attached to a paid plan without paying for it. Where the site owner has mapped a plan to a privileged role, this leads to privilege escalation up to administrator.

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