These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
A critical vulnerability was found in the Linux kernel, specifically in the KVM s390 pci component. The vulnerability arises from a NULL pointer dereference that occurs when the airq_iv_create() function returns NULL, indicating an allocation failure. This NULL value is not checked and leads to a failure when dereferenced in the kvm_zpci_set_airq() function. The vulnerability has a CVSS score of 9.3 and i [truncated]
The Linux kernel Bluetooth SCO subsystem has a use-after-free vulnerability. When close() races with the controller's Disconnection Complete event, it leads to a reference count underflow and use-after-free. The bug was fixed by giving the socket its own sco_conn reference. This vulnerability affects Linux kernel users, administrators, and developers. The CVSS score is 8.8 and is classified as HIGH severity.
The Linux kernel vulnerability, CVE-2026-80682, affects systems utilizing the RISC-V architecture. This vulnerability stems from improper alignment in the computation of vmemmap_start_pfn, which could lead to local privilege escalation attacks. The issue arises from the incorrect conversion of MAX_FOLIO_VMEMMAP_ALIGN to a physical alignment used in VMEMMAP_ADDR_ALIGN. To address this, a patch has been app [truncated]
A use-after-free vulnerability was found in the Linux kernel's vxlan implementation. The issue arises when the `route_shortcircuit()` function is called, which may reallocate the `skb->head` memory. This reallocation can cause the cached `eth` header pointer to point to freed memory, leading to a use-after-free error when dereferencing `eth->h_dest`. The vulnerability has been resolved by updating the `et [truncated]
A race condition and error handling vulnerability in the i2c_imx_reg_slave() function of the Linux kernel has been resolved. The vulnerability could cause subsequent registration attempts to fail with -EBUSY and potentially lead to a NULL pointer dereference in the interrupt handler i2c_imx_isr(). This issue arises from a race condition in the i2c_imx_reg_slave() function where the slave pointer was assig [truncated]
A race condition vulnerability was found in the Linux kernel's driver core, specifically in the dev_has_sync_state() function. This function reads the dev->driver field twice without holding the device_lock, which can lead to a use-after-free vulnerability if the driver is unbound concurrently. The vulnerability has a CVSS score of 7.8 and is classified as HIGH severity. The issue was resolved by using RE [truncated]
The CVE-2026-80675 vulnerability is related to the Linux kernel and involves a problem with the libbpf library. The loader verifies map->sha against the metadata hash in its instructions. Without exclusivity, another BPF program with map access can mutate the contents afterwards. System administrators and users of the Linux kernel should be aware of this vulnerability and take necessary actions to update [truncated]
The Linux kernel vulnerability (CVE-2026-80674) is related to the handling of resident attribute lists in the NTFS filesystem. This vulnerability allows for out-of-bounds reads due to improper validation. Linux kernel users and administrators should prioritize assessment and patching of this vulnerability. The issue was resolved by factoring the per-entry validation into a separate function and using it i [truncated]
The Linux kernel vulnerability, CVE-2026-80673, is a critical slab out-of-bounds read issue in the ntfs_external_attr_find() function. This vulnerability allows for potential information disclosure or system crashes when an inode is read. It affects Linux kernel developers, Linux distribution maintainers, and users of Linux-based systems. The issue is resolved by validating the look-ahead entry with ntfs_ [truncated]
The Linux kernel's ntfs implementation has a vulnerability in the ntfs_check_restart_area and ntfs_check_log_client_array functions. An attacker can trigger an out-of-bounds read by mounting a crafted NTFS image, potentially leading to local privilege escalation. This vulnerability exists in the Linux kernel's ntfs implementation, specifically in the ntfs_check_restart_area and ntfs_check_log_client_array [truncated]
The Linux kernel has a vulnerability in the perf sched component that can lead to an integer overflow, heap buffer overflow, and BUG_ON. The vulnerability is caused by the register_pid() function not properly handling untrusted perf.data input. This can result in a denial of service or potentially code execution. The affected product is the Linux kernel, and the vulnerability class is related to improper [truncated]
The Linux kernel vulnerability CVE-2026-80670 allows for an out-of-bounds heap read due to improper validation of CPU index in the perf tools. This issue arises from the machine__resolve() function accessing env->cpu[al->cpu].socket_id without validating al->cpu against env->nr_cpus_avail. The vulnerability can be triggered by a crafted perf.data sample with a large CPU index. To address this, the perf_en [truncated]
The CVE-2026-80668 vulnerability is a critical use-after-free issue in the Linux kernel's netfilter component. A patch has been applied to replace the timer API with a GC worker approach for expectations, addressing a race condition allowing an expectation to access a stale exp-master pointer. This change implicitly addresses a race with the existing timer API and allows for the removal of several nf_ct_e [truncated]
The Linux kernel vulnerability CVE-2026-80665 has been resolved. The KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN issue has been fixed by preparing an external abort before returning from kvm_translate_vncr(). This fix prevents potential aborts in KVM: arm64: nv. The vulnerability was addressed by modifying the kvm_handle_vncr_abort() function to handle 'late' failures on the outpu [truncated]
A vulnerability in the Linux kernel's netfilter component has been addressed. The xt_nat SNAT and DNAT target handlers did not properly handle IP-family conntrack state, leading to a potential NULL-pointer dereference when used with unsupported families via nft_compat. This issue could be triggered by a bridge-family compat rule, causing a NULL-dereference in nf_nat_setup_info(). The fix involves rejectin [truncated]
The Linux kernel has a vulnerability in the intel-speed-select tool that allows a local unprivileged user to clobber a pidfile and write to an attacker-chosen file. The CVE record was published on 2026-08-28T08:16:51.503Z and has not been modified since then. This vulnerability has been resolved by hardening the daemon pidfile open with O_NOFOLLOW and validating it with fstat() before locking/writing. Sys [truncated]
The Linux kernel vulnerability, CVE-2026-80662, is a potential local privilege escalation attack caused by an incorrect definition of CXL_HEADERLOG_SIZE. The CXL r4.0 8.2.4.17.7 RAS Capability Structure has a total length of 0x58 bytes, but CXL_HEADERLOG_SIZE was defined as SZ_512, which is eight times the actual on-device size. This leads to a buffer overflow when reading from the RAS capability iomap. T [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-28T08:16:51.290Z and has not been modified since then. The Linux kernel vulnerability was detected in the ufs core tracing functionality. Trace events in drivers/ufs/core/ufs_trace.h were improperly dereferencing pointers in TP_printk(). To fix this, save the device name from the hba pointer at the [truncated]
The Linux kernel vulnerability CVE-2026-80653 has a high CVSS score of 8.4. A warning is triggered when executing link reset of remote PHY and rmmod SAS driver simultaneously due to improper device link handling. The issue is addressed by adding a slave_destroy interface to ensure proper link removal. This vulnerability affects Linux system administrators and users, especially those using the hisi_sas dri [truncated]
A vulnerability was found in the Linux kernel's RapidIO TSI721 driver. The tsi721_db_dpc() function did not properly reset the 'found' variable at the start of each iteration in a list_for_each() loop. This could cause the loop to exit with an iterator pointing to invalid memory, leading to a potential crash or code execution. The issue has been resolved by moving the 'found' variable inside the loop and [truncated]
The Linux kernel's ocfs2 filesystem has a vulnerability in the ocfs2_remove_refcount_extent function, leading to an out-of-bounds write. This occurs when unlinking a refcounted file whose refcount tree has leaf blocks, triggering a fortify panic. The issue arises from a bulk memset operation on &rb->rf_records, which writes past the 16-byte declared size of rf_records. The fix involves replacing the bulk [truncated]
The CVE-2026-80637 vulnerability involves an unaligned memory access issue in the Linux kernel's netfilter synproxy component. This issue arises from improper handling of timestamp adjustments, which can lead to performance degradation or crashes on strict alignment architectures. The vulnerability is resolved by using get_unaligned_be32() and put_unaligned_be32() to safely read and write timestamp fields [truncated]
The Linux kernel's wifi wcn36xx driver has an out-of-bounds read vulnerability due to insufficient validation of firmware response length, tracked as CVE-2026-80635. This HIGH-severity vulnerability, with a CVSS score of 8.8, could potentially corrupt BA session state. The vulnerability is resolved by adding validation that the response includes the candidate data. Affected product deployments should be r [truncated]
A critical vulnerability was resolved in the Linux kernel, related to netfilter flowtable and bridge VLAN untag handling. The issue could lead to an out-of-bounds stack read and incorrect route descriptor counts due to a potential underflow of `num_encaps`. This CVE has a CVSS score of 9.8 and was published on 2026-08-28T08:16:48.303Z. The vulnerability was addressed by moving the decrement of `num_encaps [truncated]
The Linux kernel's iommufd component has a vulnerability, CVE-2026-80633, which involves a missing lock in the release path of DMA buffer unpinning. This issue was identified during testing of the iommufd selftests. The iopt_release_pages function calls dma_buf_unpin without holding the required dma_resv lock, leading to a warning. The resolution involves taking the dma_resv lock around dma_buf_unpin in i [truncated]
A flaw was found in the Linux kernel's btrfs implementation. The lzo decompression code did not properly validate the length of compressed segments, allowing a crafted extent to cause a null pointer dereference. This issue has been resolved by rejecting any segment whose payload would extend beyond the compressed input size. The flaw occurs in the lzo_decompress_bio function, which did not correctly valid [truncated]
The CVE-2026-80630 vulnerability is related to the Linux kernel's net/sched: sch_fq_codel. The issue arises when fq_codel drops packets during peek, leading to incorrect qlen updates and potential deactivation of parent classes. A fix has been applied by only calling qdisc_tree_reduce_backlog in peek after the qlen is restored. This vulnerability affects Linux kernel users, particularly those using fq_cod [truncated]
The Linux kernel ALSA sequencer OSS implementation has a data race vulnerability. This vulnerability exists in the snd_seq_oss_readq_clear() function, which resets the read queue without acquiring the q->lock spinlock. This can cause a race with the snd_seq_oss_readq_free() or snd_seq_oss_readq_put_event() functions, leading to stale records in the queue, dropped queued events, or incorrect readiness repo [truncated]
The Linux kernel has a use-after-free vulnerability in the tlclk driver. A patch has been applied to improve the module cleanup process and prevent potential use-after-free and race conditions. This vulnerability affects the Linux kernel's tlclk driver, which is used for managing a specific hardware component. The patch improves the module cleanup process by setting '.owner = THIS_MODULE' in tlclk_fops, u [truncated]
The CVE-2026-80619 vulnerability was resolved in the Linux kernel, specifically addressing a potential use-after-free (UAF) issue in the AppArmor subsystem. The function aa_replace_profiles was accessing udata->size after calling aa_put_loaddata(udata), which could lead to a UAF. The fix involves saving the size to a local variable before dropping the reference. Linux kernel users and administrators, espe [truncated]