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Red Hat Enterprise Linux errata (RHSA) via the official Red Hat Security Data API — CVE severity, CVSS and affected packages. A credential-free official source.

Latest Red Hat advisories

Medium6.8Red Hat

Medium [CVE-2026-19278] Privilege escalation via unanchored regular expressions in Auth M2M role mappings

Privilege escalation via unanchored regular expressions in Auth M2M role mappings. Red Hat rates this moderate (CVSS 6.8). Weakness: CWE-625.

CVE-2026-19278
Unclassified
Aug 10, 2026
Medium6.5Red Hat

Medium [CVE-2026-19429] Arbitrary file read via symlink target validation bypass

Jenkins FilePath.untarFrom() does not validate symlink targets in extracted TAR archives, even in versions patched for CVE-2026-33001 and CVE-2026-70427. An authenticated attacker with job configuration privileges can include a malicious archive in a build step that creates workspace symlinks pointing to arbitrary files on the Jenkins controller. By reading the secrets directory, the attacker obtains the cryptographic keys used to sign remember-me cookies, forges a valid administrator session cookie without any admin interaction, and gains access to the Script Console for remote code execution. Jenkins 2.576 is additionally affected by a bypass of the CVE-2026-70427 blank-name check via Unicode zero-width characters (U+200B, U+200C, U+200D, U+2060, U+00AD), which Java's String.isBlank() does not recognize as whitespace. A flaw was found in Jenkins. An authenticated remote attacker with low privileges could exploit an incomplete patch related to symlink validation during tar archive extraction. This vulnerability allows the attacker to bypass symlink target validation, enabling them to read arbitrary files on the Jenkins controller filesystem. This could lead to the disclosure of sensitive information, such as master keys and credentials. Affected product named by the advisory: OpenShift Developer Tools and Services.

CVE-2026-19429
Unclassified
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68428] Fix use-after-free on vendor module reload

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Fix use-after-free on vendor module reload mmu_destroy_caches() destroys pte_list_desc_cache and mmu_page_header_cache, but leaves both pointers unchanged. The pointers live in kvm.ko, and therefore survive when a vendor module is unloaded while kvm.ko remains loaded. If creation of pte_list_desc_cache fails during a subsequent vendor module load, its assignment sets pte_list_desc_cache to NULL and the error path calls mmu_destroy_caches(). mmu_page_header_cache still points to the cache destroyed during the preceding vendor module unload. Passing that stale pointer to kmem_cache_destroy() causes a slab use-after-free. Reproduce the issue on a v7.1.3 kernel with CONFIG_KASAN=y, CONFIG_KASAN_GENERIC=y, CONFIG_KVM=m, and CONFIG_KVM_INTEL=m. A one-shot test hook forces pte_list_desc_cache to NULL on the second invocation of kvm_mmu_vendor_module_init(): 1. Load kvm.ko and kvm-intel.ko, creating both caches. 2. Unload only kvm_intel, leaving kvm.ko loaded. 3. Reload kvm_intel and force initialization through the -ENOMEM path. KASAN reports: BUG: KASAN: slab-use-after-free in kvm_mmu_vendor_module_init+0x5b/0x170 [kvm]... kmem_cache_destroy+0x21/0x1d0 kvm_mmu_vendor_module_init+0x5b/0x170 [kvm]...

CVE-2026-68428
Linux Kernel
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68425] Drop unmatched RMPP responses before reassembly

In the Linux kernel, the following vulnerability has been resolved: IB/mad: Drop unmatched RMPP responses before reassembly Kernel-handled RMPP receive processing starts reassembly for active DATA responses before the response is matched to an outstanding send. The normal match happens later, after ib_process_rmpp_recv_wc() has either assembled a complete message or consumed the segment. That ordering lets an unsolicited response that routes to a kernel RMPP agent by the high TID bits allocate or extend RMPP receive state before the full TID and source address are checked against a real request. A reordered burst can therefore reach the receive-side insertion path even though the response would not match any send. The matcher already checks the full TID, management class and source address/GID against the agent wait, backlog and in-flight send lists. If there is no match, drop the response without creating RMPP state. This leaves the RMPP window behavior unchanged and only rejects responses that have no corresponding request. A flaw was found in the Linux kernel's InfiniBand (IB) Management Datagram (mad) component. A remote attacker could exploit this vulnerability by sending unsolicited Reliable Multicast Packet Protocol (RMPP) responses.

CVE-2026-68425
Linux Kernel
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68424] fix use-after-free in mtd_virt_concat_destroy_joins

In the Linux kernel, the following vulnerability has been resolved: mtd: virt_concat: fix use-after-free in mtd_virt_concat_destroy_joins() mtd_concat_destroy() frees item->concat so calling mtd_virt_concat_put_mtd_devices(item->concat) leads to a use after free. A flaw was found in the Linux kernel's `mtd_virt_concat` module. This use-after-free vulnerability occurs when the `mtd_concat_destroy()` function frees memory before it is no longer referenced by `mtd_virt_concat_put_mtd_devices()`. An attacker could potentially exploit this flaw to cause memory corruption, which may lead to a denial of service or other impacts on system stability. This issue affects virtual MTD concat join devices. Same UAF pattern as CVE-2026-68423 in destroy_joins path. Systems not using virt_concat MTD are not affected. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-825. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux for NVIDIA 26; Red Hat OpenShift Container Platform 4 as not affected.

CVE-2026-68424
Unclassified
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68423] fix use-after-free in mtd_virt_concat_destroy

In the Linux kernel, the following vulnerability has been resolved: mtd: virt_concat: fix use-after-free in mtd_virt_concat_destroy() mtd_concat_destroy() frees item->concat so calling mtd_virt_concat_put_mtd_devices(item->concat) after that leads to a use-after-free. The `mtd_virt_concat_destroy()` function incorrectly calls `mtd_virt_concat_put_mtd_devices()` after `mtd_concat_destroy()` has already freed the associated memory. This use-after-free vulnerability can lead to system instability or potentially enable a local attacker to achieve privilege escalation or arbitrary code execution. This issue affects virtual MTD concat devices. mtd_virt_concat_destroy() UAF by using freed concat pointer after mtd_concat_destroy(). Systems not using virt_concat MTD are not affected. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-825. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux for NVIDIA 26; Red Hat OpenShift Container Platform 4 as not affected.

CVE-2026-68423
Unclassified
Aug 10, 2026
Medium5.5Vendor: LowRed Hat

Medium [CVE-2026-68422] fix root leak if its reloc root is unexpected in merge_reloc_roots

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots() If we have an unexpected reloc_root for our root, we jump to the out label but never drop the reference we obtained for root, resulting in a leak. Add a missing btrfs_put_root() call. A flaw was found in the btrfs filesystem component of the Linux kernel. An unexpected relocation root in the `merge_reloc_roots()` function can lead to a resource leak. This occurs because a reference to the root is not properly released, potentially causing system instability or a denial of service due to resource exhaustion. This issue affects systems using the Btrfs file system during balance/relocation operations. If merge_reloc_roots() encounters an unexpected relocation root, it exits without releasing a reference on the root structure, leaking memory. Over time this can contribute to resource exhaustion on affected workloads. Red Hat severity: Low — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-772. Affected Red Hat products: Red Hat Enterprise Linux 10. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: kernel.

CVE-2026-68422
Linux Kernel
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68421] Don't warn on core-sched forced idle in put_prev_task_scx

In the Linux kernel, the following vulnerability has been resolved: sched_ext: Don't warn on core-sched forced idle in put_prev_task_scx() put_prev_task_scx() warns when a runnable task drops to a lower sched_class without SCX_OPS_ENQ_LAST, on the assumption that balance_one() would have kept it running. Core scheduling breaks that: a forced-idle SMT sibling reschedules through the core_pick fast path in pick_next_task(), which skips pick_task_scx() and thus balance_one(), so a runnable task can drop to idle with ENQ_LAST unset. Gate the warning on sched_cpu_cookie_match(): a cookie mismatch means core scheduling forced the idle, while a match (or core scheduling off) still catches a genuine missing-ENQ_LAST drop. The `put_prev_task_scx()` function incorrectly issues a warning when a runnable task transitions to an idle state due to core scheduling. This occurs because the core scheduling mechanism bypasses certain checks, leading to a misleading warning. This issue affects sched_ext (BPF scheduler). Requires CONFIG_SCHED_CLASS_EXT. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-1288. Affected Red Hat products: Red Hat Enterprise Linux for NVIDIA 26. Affected products named by the advisory: Red Hat package: kernel.

CVE-2026-68421
Linux Kernel
Aug 10, 2026
Medium5.5Vendor: LowRed Hat

Medium [CVE-2026-68418] Prevent user-triggered null deref on QP create

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Prevent user-triggered null deref on QP create Previously, the user QP creation path would only attempt to populate iwqp->iwpbl if the user-provided req.user_wqe_bufs field was non-zero. The problem is that iwqp->iwpbl is unconditionally dereferenced later on in irdma_setup_virt_qp. The end result is that a user could send a zero user_wqe_bufs value and trigger a null ptr deref. Fix this by unconditionally calling irdma_get_pbl and bailing if it fails, similar to the CQ and SRQ paths. A local user could exploit this vulnerability by providing a zero value for `user_wqe_bufs` during the creation of a Queue Pair (QP). This action leads to a null pointer dereference, which can cause the system to crash, resulting in a Denial of Service (DoS). This issue affects systems using the Intel RDMA (irdma) driver. A local user creating a queue pair with user_wqe_bufs set to zero can trigger a NULL pointer dereference because iwpbl is not allocated but is later dereferenced unconditionally. Systems without irdma/RDMA userspace access are not affected. Red Hat severity: Low — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-476. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux for NVIDIA 26.

CVE-2026-68418
Linux Kernel
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68417] publish QP after initialization

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: publish QP after initialization siw_create_qp() currently calls siw_qp_add() before the queues, CQ pointers, state, completion, and device list entry are ready. A QPN lookup can therefore reach a QP that is still being constructed. The `siw_create_qp()` function prematurely publishes a Queue Pair (QP) before its complete initialization. This allows a Queue Pair Number (QPN) lookup to access a QP that is still under construction, potentially leading to unexpected behavior or system instability. This issue affects RDMA siw (Soft-iWARP). QP published to lookup table before initialization completes. Systems not using siw RDMA are not affected. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-908. Affected Red Hat products: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: kernel-rt.

CVE-2026-68417
Linux Kernel
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68413] memory leak in ipw2100_pci_init_one

In the Linux kernel, the following vulnerability has been resolved: wifi: ipw2100: fix potential memory leak in ipw2100_pci_init_one() The memory allocated in the ipw2100_alloc_device() function is not freed in some of the error paths in ipw2100_pci_init_one(). Fix that by converting the direct return into a goto to the error path return. The error path when pci_enable_device() fails cannot jump to fail, since at this point priv is not set, so perform error handling inline. A flaw was found in the ipw2100 wireless driver in the Linux kernel. This occurs because memory allocated by ipw2100_alloc_device() is not properly released in specific error scenarios, potentially allowing a local attacker to cause a denial of service due to resource exhaustion. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-772. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux for NVIDIA 26. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: kernel-rt.

CVE-2026-68413
Linux Kernel
Aug 10, 2026
Medium5.5Vendor: LowRed Hat

Medium [CVE-2026-68412] Fix an error handling path in cfg80211_wext_siwscan

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Fix an error handling path in cfg80211_wext_siwscan() If the test against IEEE80211_MAX_SSID_LEN fails, then 'creq' leaks. A flaw was found in the Linux kernel's Wi-Fi subsystem, specifically within the `cfg80211` component. This vulnerability, located in the `cfg80211_wext_siwscan()` function, can lead to a memory leak. A local attacker could exploit this by sending a crafted Wi-Fi scan request with an Extended Service Set Identifier (ESSID) exceeding the maximum allowed length. This improper handling of the oversized ESSID causes a `creq` object to not be properly freed, potentially leading to a denial of service. This issue affects cfg80211 wireless extensions scan requests. If SSID length validation fails in cfg80211_wext_siwscan(), the allocated creq structure leaks. Systems using only nl80211 (not wext) are not affected. Red Hat severity: Low — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-772. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux for NVIDIA 26; Red Hat OpenShift Container Platform 4. Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux for NVIDIA 26.

CVE-2026-68412
Linux Kernel
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68410] fix memory leak in helper_firmware_cb

In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: fix memory leak in helper_firmware_cb() helper_firmware_cb() neglects to free the single-stage firmware image after a successful async load, leading to a memory leak in the USB firmware-download path. Fix this memory leak by calling release_firmware() immediately after lbs_fw_loaded() returns. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in the current wireless tree. An x86_64 allyesconfig build showed no new warnings. As we do not have compatible Libertas USB hardware for exercising this firmware-download path, no runtime testing was able to be performed. This issue could potentially lead to system instability or a denial of service (DoS) due to resource exhaustion. Systems without libertas hardware are not affected. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-772. Affected Red Hat products: Red Hat OpenShift Container Platform 4. Red Hat does not currently list a fixing RHSA for this CVE.

CVE-2026-68410
Unclassified
Aug 10, 2026
Medium5.5Vendor: LowRed Hat

Medium [CVE-2026-68407] free RNR data on MBSSID mismatch

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: free RNR data on MBSSID mismatch nl80211_parse_beacon() rejects EMA RNR data when there are fewer RNR entries than MBSSID entries. The rejected RNR allocation has not been attached to the beacon data yet, so free it before returning the error. When processing beacon frames, the `nl80211_parse_beacon()` function may fail to properly free allocated RNR (Reduced Neighbor Report) data if there is a mismatch in the number of RNR and MBSSID (Multiple Basic Service Set Identifier) entries. This improper memory handling could lead to a memory leak, potentially allowing a remote attacker to cause a denial of service. This issue affects nl80211 beacon parsing with EMA MBSSID and RNR data. Systems not using nl80211 beacon parsing are not affected. Red Hat severity: Low — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-772. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: kernel-rt.

CVE-2026-68407
Linux Kernel
Aug 10, 2026
Medium5.5Vendor: LowRed Hat

Medium [CVE-2026-68406] validate PMSR FTM preamble range

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: validate PMSR FTM preamble range PMSR FTM request parsing accepts preamble values outside the enumerated nl80211 preamble range. Reject out-of-range values before using them in the parser capability bit test using the policy. [drop unnecessary check] A flaw was found in the `cfg80211` component of the Linux kernel's Wi-Fi subsystem. An attacker could exploit this by providing malformed input, potentially leading to unexpected system behavior or resource exhaustion. This issue affects the cfg80211 Wi-Fi configuration layer. PMSR FTM request parsing accepted preamble values outside the nl80211 enumerated range, which could lead to out-of-bounds access in capability bit tests. Exploitation requires a local user able to issue nl80211 PMSR requests. Red Hat severity: Low — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-839. Affected Red Hat products: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8. Red Hat fixing advisory: RHSA-2026:67150. Affected products named by the advisory: Red Hat package: kernel-rt.

CVE-2026-68406
Linux Kernel
Aug 10, 2026
Medium5.5Vendor: LowRed Hat

Medium [CVE-2026-68405] free AP_VLAN bc_buf SKBs outside IRQ lock

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: free AP_VLAN bc_buf SKBs outside IRQ lock ieee80211_do_stop() removes AP_VLAN packets from the parent AP ps->bc_buf while holding ps->bc_buf.lock with IRQs disabled. It then calls ieee80211_free_txskb() before dropping the lock. ieee80211_free_txskb() is not just a passive SKB release. For SKBs with TX status state it can report a dropped frame through cfg80211/nl80211, and that path can reach netlink tap transmit. This is the same reason the pending queue cleanup in ieee80211_do_stop() already unlinks SKBs under the queue lock and frees them after IRQ state is restored. The buggy scenario involves two paths, with each column showing the order within that path: AP_VLAN management TX: AP_VLAN stop: 1. attach ACK-status state 1. clear the running state 2. queue a multicast SKB on 2. take ps->bc_buf.lock with IRQs parent ps->bc_buf disabled 3. unlink the AP_VLAN SKB 4. call ieee80211_free_txskb() Unlink matching AP_VLAN SKBs from ps->bc_buf under the existing lock, but move them to a local free queue. Drop the lock and restore IRQ state before calling ieee80211_free_txskb(). WARNING: kernel/softirq.c:430 at __local_bh_enable_ip When stopping an Access Point (AP) VLAN, the system attempts to free network packet buffers (SKBs) while interrupts are disabled.

CVE-2026-68405
Linux Kernel
Aug 10, 2026
Medium6.4Red Hat

Medium [CVE-2026-68399] Fix UAF in sock clone early bailouts

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF in sock clone early bailouts Similar to recent commit 9b51a6155d14 ("bpf,fork: wipe ->bpf_storage before bailouts that access it"), sk_clone() performs an initial shallow copy of the socket field ->sk_bpf_storage via sock_copy() for the cloned socket newsk. If sk_clone() bails out early (e.g. if sk_filter_charge() fails) prior to calling bpf_sk_storage_clone(), newsk->sk_bpf_storage still points to the parent socket's BPF local storage. When newsk is subsequently freed via sk_free(), the deallocation path (__sk_destruct() -> bpf_sk_storage_free()) destroys the parent socket's BPF local storage, leading to a use-after-free (UAF) on the parent socket. Fix this by resetting newsk->sk_bpf_storage to NULL immediately after sock_copy() in sk_clone(), and remove the now redundant initialization from bpf_sk_storage_clone(). A flaw was found in the Linux kernel's Berkeley Packet Filter (BPF) component, specifically within the socket cloning mechanism. When a new socket is created and its cloning process fails prematurely, the new socket's BPF local storage may incorrectly reference the parent socket's storage. An attacker could potentially exploit this to cause a system crash (denial of service) or achieve arbitrary code execution.

CVE-2026-68399
Linux Kernel
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68395] enable SATA interrupts only after IRQ handler is registered

In the Linux kernel, the following vulnerability has been resolved: ata: sata_dwc_460ex: enable SATA interrupts only after IRQ handler is registered sata_dwc_enable_interrupts() is called before platform_get_irq() and ata_host_activate(), leaving the SATA controller's interrupt mask enabled without a registered handler. If a later step fails (irq request, phy init, etc.) or if the controller asserts an interrupt during probe, the irq line may fire with no handler, causing a spurious interrupt storm. Move sata_dwc_enable_interrupts() after ata_host_activate() so that interrupts are only unmasked once the handler is registered and the core is fully initialized. This timing issue can lead to a spurious interrupt storm if an interrupt occurs prematurely or if subsequent setup steps fail. Such an event could result in system instability or a Denial of Service (DoS). This issue affects AppliedMicro SATA DWC controllers on PowerPC. SATA interrupts are unmasked before IRQ handler registration during probe. Systems without sata_dwc_460ex are not affected. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-431. Affected Red Hat products: Red Hat OpenShift Container Platform 4. Red Hat does not currently list a fixing RHSA for this CVE.

CVE-2026-68395
Unclassified
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68394] revalidate LOAD_CONN_PARAM queued update

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: revalidate LOAD_CONN_PARAM queued update MGMT_OP_LOAD_CONN_PARAM queues conn_update_sync() when a single parameter update changes an existing LE central connection. The queued work currently stores a borrowed hci_conn_params entry from hdev->le_conn_params. A later LOAD_CONN_PARAM request can clear disabled parameters and free that entry before hci_cmd_sync_work() runs the queued callback. Queue the hci_conn instead and hold a reference until the queued callback completes. When the work runs, revalidate that the connection is still present, look up the current hci_conn_params entry, and cancel the update if userspace removed that entry while the work was pending. Copy the interval values from the current params entry under hdev->lock, then drop the lock and keep using hci_le_conn_update_sync() to issue the update. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux for NVIDIA 26; Red Hat package: kernel.

CVE-2026-68394
Linux Kernel
Aug 10, 2026
Medium5.5Red Hat

Medium [CVE-2026-68392] fix locking in unpair_device/disconnect_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix locking in unpair_device/disconnect_sync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take hdev->lock for hci_conn lookup and hci_abort_conn(). Don't use RCU to ensure the conn is fully initialized at this point. A flaw was found in the Linux kernel's Bluetooth management subsystem. This vulnerability occurs due to incorrect locking when handling memory pointers during device unpairing and disconnection. An attacker could exploit this to trigger a Use-After-Free (UAF) condition, which is a type of memory corruption that may lead to system instability or other impacts. Systems without Bluetooth are not affected. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-413. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: kernel-rt.

CVE-2026-68392
Linux Kernel
Aug 10, 2026

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