These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
A vulnerability in the Linux kernel's netfilter: x_tables component has been addressed. The vulnerability was resolved by adding xtables_unregister_table_exit to properly handle table removal and re-instantiation, particularly in cases of rmmod. This change helps prevent issues with table removal and re-instantiation, which could lead to problems with network connectivity and security.
A vulnerability in the Linux kernel has been resolved. The netfilter: ebtables has been moved to a two-stage removal scheme. This change affects Linux kernel users, particularly those with exposure to ebtables. The CVE record was published on 2026-07-19T16:17:48.313Z. The vulnerability impacts Linux kernel users who utilize ebtables, requiring their attention to assess and potentially update their systems [truncated]
The Linux kernel was vulnerable to a race condition in the netfilter: bridge: eb_tables module initialization. This issue has been resolved. The vulnerability was publicly disclosed on 2026-07-19T16:17:48.213Z. An attacker could potentially exploit this vulnerability to cause unexpected behavior in the netfilter: bridge: eb_tables module. Linux kernel maintainers and users should review and apply patches [truncated]
A vulnerability in the Linux kernel's fprobe functionality has been addressed. The issue involves a use-after-free condition when unregistering fprobe instances, which could lead to security issues if exploited. The fix adds a synchronize_rcu() call to ensure proper synchronization. This change helps prevent potential security risks associated with fprobe use. Linux kernel developers and maintainers shoul [truncated]
A Linux kernel vulnerability, CVE-2026-64074, was found in the statmount_mnt_idmap function, leading to a slab out-of-bounds write. This issue arises from a manual increment of seq->count after seq_printf(), potentially causing seq_has_overflowed() to fail in detecting buffer overflows. The vulnerability exists in the Linux kernel's statmount_mnt_idmap function. When seq_printf() overflows, it sets seq->c [truncated]
A use-after-free vulnerability was found in the Linux kernel's irq_work_single() function on PREEMPT_RT. After clearing the BUSY flag, the function still accesses the @work structure, which can be freed by another CPU, leading to a use-after-free error. The issue is resolved by wrapping run_irq_workd() in guard(rcu)() to ensure the entire irq_work_single() execution is within an RCU read-side critical sec [truncated]
A Linux kernel vulnerability, CVE-2026-64072, was resolved, fixing a bio leak on mapping failure. This issue affects Linux kernel users and administrators. The vulnerability class involves bio leaks, and the likely operational impact is data exposure. Source confidence is limited to CVE and NVD details. Linux kernel deployments should review official advisories for affected scope and severity. The vulnera [truncated]
A use-after-free vulnerability was found in the Linux kernel's nvme-pci module. The issue arises when nvme_free_host_mem() is called twice in the same error path, leading to a NULL pointer dereference. This can happen during nvme_probe() when nvme_setup_host_mem() succeeds in allocating the HMB but nvme_set_host_mem() fails with an I/O error. The vulnerability can cause system crashes or instability, part [truncated]
A vulnerability in the Linux kernel's netfs has been resolved. The vulnerability affects the cancellation of DIO and single read subrequests. When preparation of a new subrequest for a read fails, it can't simply be put and abandoned as the collector may see it. Both DIO read and single-read dispatch fail at this; further, both differ in the order they do things to the way buffered read works. The vulnera [truncated]
A vulnerability was found in the Linux kernel related to the netfs subsystem. The issue arises from the lack of proper barriers when accessing the stream->subrequests list locklessly. This could lead to potential data corruption or unexpected behavior. The fix involves adding new list functions with release and acquire barriers to ensure proper synchronization. Linux kernel developers and maintainers shou [truncated]
A vulnerability was found in the Linux kernel, specifically in the netfs_read_to_pagecache() function. The issue has been fixed to pause the generation of new subrequests if an already-issued subrequest fails. This change aims to prevent potential exploitation of the vulnerability. Linux kernel users and administrators should be aware of this vulnerability and take necessary actions to protect their syste [truncated]
A vulnerability was found in the Linux kernel, specifically in the netfs subsystem. The issue arises when a streaming write is made to a file, leaving the relevant modified folio in a not-uptodate but dirty state. If the file is then truncated, removing the dirty data in the folio but not the folio itself, the dirty flag remains set. This can cause issues when the folio is read via mmap(), as netfs_read_f [truncated]
A Linux kernel vulnerability, CVE-2026-64063, was resolved to address an issue with streaming writes in netfslib. The vulnerability allowed partial writes to overwrite dirty data in folios without proper handling, potentially leading to data corruption. This issue was found with fsx -q -N 1000000 -p 10000 -o 128000 -l 600000 on cifs with the default cache option. The fix ensures that folios are properly h [truncated]
A potential deadlock in write-through mode has been resolved in the Linux kernel. The fix involves unlocking the supplied folio and marking it dirty if it isn't yet written to the end. This change prevents a deadlock against mmapped reads and writes. The vulnerability is related to the netfs_advance_writethrough() function. The fix ensures that the supplied folio is always unlocked and marked dirty if it [truncated]
A use-after-free vulnerability was found in the Linux kernel's netfs_read_gaps() function, which can lead to a crash or potentially allow an attacker to execute arbitrary code. The bug was detected by KASAN during the execution of the generic/075 xfstest in the cifsd kernel thread. This vulnerability affects Linux kernel users and administrators, who should be aware of this issue and take steps to ensure [truncated]
The Linux kernel was found to have a vulnerability in netfs_write_begin() error handling. This vulnerability could potentially lead to a leak of requests in the event of an error from netfs_wait_for_read(). The vulnerability is located in the netfs_write_begin() function of the Linux kernel. Specifically, the function does not properly handle errors that occur during the netfs_wait_for_read() call, leadin [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-19T16:17:46.407Z and has not been modified since then. This vulnerability affects the Linux kernel, specifically the netfs: Fix folio->private handling in netfs_perform_write(). The vulnerability has the potential to cause multiple attachments of private data, leading to folio ref leaks and leaks of [truncated]
A vulnerability in the Linux kernel's netfs has been resolved. The netfs_read_folio() function did not wait for ongoing writeback to complete, potentially leading to inconsistent reads. This issue affects Linux kernel versions 6.12 through 6.18.34, 6.19 through 7.0.11, and specific release candidates for version 7.1. The vulnerability could lead to data inconsistency or exposure. Linux system administrato [truncated]
A vulnerability was found in the Linux kernel's afs filesystem. The afs_get_link() function did not properly lock symbolic links, allowing for potential leaks and races with other threads. This has been resolved by taking the validate_lock around afs_read_single(), using RCU barriering, and splitting symlink read and write-to-cache routines. The fix involved moving symlink handling into its own file, taki [truncated]
CVE-2026-64056 is a Linux kernel vulnerability affecting the net: ethernet: cortina driver. The issue arises from a static local SKB used to assemble packets from fragments in gmac_rx(), which can lead to races between two ethernet ports on the Gemini device. To address this, the RX SKB should be made a per-port variable carried over between invocations in the port struct. The SKB pointer should be zeroed [truncated]
The Linux kernel was found to have a vulnerability in the gmac_rx() NAPI poll function, which assembles packets in an SKB from a ring buffer. If the ring buffer gets completely emptied during a poll cycle, the packet is not yet completely assembled in the SKB, and the fragment counter frag_nr is reset to zero on the next invocation. This issue was resolved by making the RX fragment counter a part of the p [truncated]
A vulnerability in the Linux kernel has been resolved. The net: shaper: reject duplicate leaves in GROUP request vulnerability was fixed. This vulnerability could lead to a double free of the parent, potentially causing a denial of service or other issues. Users of Linux kernel should be aware of this vulnerability and take necessary actions to mitigate it.
PatchSiren debrief for CVE-2026-64053, a Linux kernel vulnerability related to block bio_integrity_copy_user. Evidence is limited; verify with official records. The vulnerability affects Linux kernel users and maintainers who should verify and apply patches. Limited evidence suggests the vulnerability has been resolved. This CVE record was published on 2026-07-19T16:17:45.730Z and has not been modified si [truncated]
A general protection fault occurs in bio_integrity_map_user() due to partial pinning of memory pages by pin_user_pages_fast(). This Linux kernel vulnerability, CVE-2026-64052, can cause system instability. Users should review kernel updates and apply patches. The issue arises from the bio_integrity_map_user() function not handling partial pinning, leading to a general protection fault when bvec_from_pages [truncated]
A vulnerability was found in the Linux kernel, specifically in the qaic_gem_object_mmap function, which is susceptible to (re)mapping beyond the VMA if the BO is too large. This can cause use after free issues when munmap() unmaps only the VMA region and not the additional mappings. The vulnerability has been resolved by adding an overflow check to remap_pfn_range during mmap. Linux kernel users and admin [truncated]
CVE-2026-64050 is a Linux kernel vulnerability that has been resolved. The vulnerability was caused by mixing devm and drmm functions in the drm/msm/dpu driver, which could result in a use-after-free on msm driver teardown if userspace kept a reference on the drm device. The issue has been fixed by changing dpu_writeback_init() to use drmm_ functions. This vulnerability affects Linux kernel users and admi [truncated]
A vulnerability was found in the Linux kernel, specifically in the net/smc module. The vulnerability, known as CVE-2026-64048, affects the SMC-D client. An issue arises when slot 0 of ini->ism_dev[]/ini->ism_chid[] is reserved for an SMC-Dv1 device and left in its kzalloc()'ed state with ism_dev[0] == NULL and ism_chid[0] == 0. A malicious peer can reply to a SMC-Dv2-only proposal with d1.chid == 0, match [truncated]
A Linux kernel vulnerability, CVE-2026-64047, was resolved by addressing an off-by-one error in sg_chain entry count for wrapped sk_msg ring. The issue arose in tls_push_record() when chaining the tail portion of the ring to the head using sg_chain(). This vulnerability affects Linux kernel versions and has been resolved by converting to ARRAY_SIZE and dropping the data[start] / - start calculation.
A vulnerability was found in the Linux kernel's net: tls: prevent chain-after-chain in plain text SG. The CVE record was published on 2026-07-19T16:17:44.920Z and has not been modified since then. This vulnerability affects the Linux kernel and may impact users and administrators of Linux kernel systems. The vulnerability is related to the net: tls: prevent chain-after-chain in plain text SG.
The Linux kernel was updated to address a vulnerability in the OpenVPN (ovpn) TCP implementation. Specifically, the ovpn_tcp_close() function was modified to use a cached peer pointer, preventing potential use-after-free issues. This change was introduced to fix a race condition that could occur when a peer removal was triggered concurrently with the closure of a TCP file descriptor. The update ensures th [truncated]