These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
The Linux kernel's functionfs has a use-after-free vulnerability due to a race condition between opening and removing files. This can lead to UAF on subsequent read or write operations. The fix involves serializing openers, using atomic_inc_not_zero() for dynamic files, marking inodes on removal, and verifying file state during open operations. Affected Linux kernel users and maintainers should be aware o [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T16:16:06.633Z and has not been modified since then. The NVD entry is currently Modified. The Linux kernel vulnerability CVE-2025-71072 relates to shmem recovery on rename failures. Maple_tree insertions can fail under serious memory shortage; simple_offset_rename() and simple_offset_rename_exchan [truncated]
A vulnerability in the Linux kernel has been resolved, related to the ublk server exit and user copy references. The issue arises when a ublk server process releases a ublk char device file, but requests dispatched to the ublk server but not yet completed retain a reference value. This leaked reference count allows user copy and zero copy operations on the completed ublk request and triggers warnings in u [truncated]
A critical vulnerability has been identified in the Linux kernel, specifically in the svcrdma component. The vulnerability is caused by a lack of bounds checking on the rq_pages index in the inline path, which could allow an attacker to access sensitive information or execute arbitrary code. The vulnerability has been assigned a CVSS score of 9.8 and is considered CRITICAL.
CVE-2025-71066 is a Linux kernel net/sched ETS qdisc race condition that can leave a class on the active list after its qdisc has been freed, creating a use-after-free in struct Qdisc. The supplied source says an attacker needs the ability to create new user and network namespaces to trigger the bug. The referenced fix removes the class from the active list before deleting and freeing the associated qdisc.
A local deadlock vulnerability in the Linux kernel's ublk (userspace block device) subsystem can cause system hangs when processes attempt to read partition tables from ublk block devices. The deadlock occurs when bdev_open() acquires disk->open_mutex, issues I/O to the ublk backend, and completion handling triggers a deferred fput() that attempts to reacquire the same mutex via blkdev_release(). The fix [truncated]
A use-after-free vulnerability was found in the Linux kernel's ALPS touchpad driver. The dev3_register_work delayed work item was not properly canceled during device detachment, allowing it to be scheduled after the alps_data structure had been deallocated. This can cause a use-after-free vulnerability in the Linux kernel's ALPS touchpad driver. The vulnerability can be mitigated by applying the patches p [truncated]
An out-of-bounds vulnerability exists in the Linux kernel's media dvb-usb module, specifically in the dtv5100_i2c_msg() function. The rlen value, which is user-controlled, is not checked for size, potentially leading to an out-of-bounds vulnerability for st->data. To mitigate this, proper range checking should be added to prevent such vulnerabilities.
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T16:16:03.983Z and has not been modified since then. The NVD entry is currently Modified. This use-after-free vulnerability in the Linux kernel's ksmbd module allows for remote code execution under high concurrency conditions. Affected systems include those utilizing ksmbd, and defenders should pr [truncated]
A vulnerability in the Linux kernel's net/sched: ets has been resolved. The issue occurs when a user changes a drr class to a strict one using the ets qdisc change command, without removing the drr class from the active list. This can cause a class to be added twice to the active list if a user changes a strict class back to a drr one. The vulnerability has a CVSS score of 7.8 and is considered HIGH sever [truncated]
A critical vulnerability was found in the Linux kernel, specifically in the svc_rdma_copy_inline_range function. The vulnerability has been resolved by using rc_pageoff for memcpy byte offset. The CVE record was published on 2026-01-13T16:16:03.300Z and was last modified on 2026-07-30T06:24:46.750Z. This vulnerability affects Linux kernel users and administrators, who should be aware of this critical vuln [truncated]
The Linux kernel vulnerability CVE-2025-68810 allows for a use-after-free condition when toggling KVM_MEM_GUEST_MEMFD on an existing memslot. This occurs because KVM does not support toggling this flag on existing memslots but fails to prevent clearing the flag. The vulnerability affects Linux kernel users, particularly those utilizing KVM for virtualization. It is crucial for administrators to assess the [truncated]
A critical vulnerability was found in the Linux kernel, specifically in the ksmbd module. The issue arises from a race condition on the m_flags field in vfs_cache.c, which can lead to inconsistent delete semantics when multiple threads concurrently open, close, and delete the same file. This could result in files remaining on disk after being deleted or disappearing while still in use. The vulnerability h [truncated]
The Linux kernel vulnerability, CVE-2025-68806, is a HIGH-severity issue affecting the ksmbd module. It arises from incorrect buffer validation for Extended Attributes (EA), which could lead to buffer overflow attacks if exploited. The vulnerability has been patched by adding the null terminator size to the EA length validation. Affected parties, including Linux kernel maintainers and administrators of sy [truncated]
The Linux kernel vulnerability, CVE-2025-68805, relates to a list corruption issue in the io-uring subsystem. When a request is terminated before it has been committed, a dangling list entry remains, leading to use-after-free issues. Linux kernel developers and administrators should be aware of this vulnerability and take steps to mitigate its impact. Affected product deployments should be reviewed for po [truncated]
A use-after-free vulnerability was found in the Linux kernel's mlxsw spectrum router. The driver stored a pointer to a neighbour without holding a reference, leading to potential use-after-free issues. The problem was resolved by simplifying the reference counting scheme, ensuring a reference is always taken when storing a neighbour pointer. This change prevents the use-after-free issue and ensures the st [truncated]
The Linux kernel has a vulnerability in the ethtool -S command that could lead to a buffer overflow if the number of stats changes between ioctl calls. This is due to some drivers using dynamic counters, which can cause the userspace buffer allocation to be incorrect. To prevent this, the ethtool_get_strings(), ethtool_get_stats(), and ethtool_get_phy_stats() functions have been modified to not return any [truncated]
A use-after-free vulnerability was found in the Linux kernel's AMDGPU driver. The vulnerability occurs due to a race condition between the scheduler timeout callback and the TDR work queue during GPU recovery, which can lead to accessing a freed job and result in a use-after-free error. This vulnerability can be triggered during GPU recovery, and it requires the AMDGPU driver to be updated to a version th [truncated]
The Linux kernel vulnerability CVE-2025-68792 has been resolved. The vulnerability was in the tpm2-sessions component, where 'name_size' did not have range checks, potentially leading to memory corruption. The issue was addressed by only processing known values and returning -EINVAL for unrecognized values. Additionally, 'tpm_buf_append_name' and 'tpm_buf_fill_hmac_session' were made fallible to detect er [truncated]
A vulnerability was found in the Linux kernel's Open vSwitch implementation. The push_nsh action did not properly validate the middle attribute, potentially leading to invalid memory access. This issue has been resolved with additional checks to ensure proper sizing and attribute validation. The vulnerability could lead to potential system crashes or privilege escalation. Linux kernel maintainers and user [truncated]
A use-after-free vulnerability was found in the Linux kernel's fsl-usb phy driver. The vulnerability occurs when the device is removed while a delayed work item is still pending or executing, leading to a use-after-free error when the work function accesses the already freed memory. The issue was resolved by calling disable_delayed_work_sync() in fsl_otg_remove() before deallocating the fsl_otg structure.
A vulnerability in the Linux kernel's handshake mechanism could lead to a reference count underflow when duplicate cancellation requests are made for the same handshake. This issue arises because the handshake request is removed from the handshake_net->hn_requests list but remains in the handshake_rhashtbl until it is destroyed. If a second cancellation request is made, remove_pending() returns false, and [truncated]
A race condition vulnerability in the Linux kernel's hfsplus filesystem implementation can lead to a use-after-free bug. When sync() and link() are called concurrently, both threads may enter hfs_bnode_find() without finding the node in the hash table and proceed to create it. However, hfs_bnode_find() requires each call to take a reference. In this scenario, the second thread finds the node in the hash t [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-01-13T16:15:56.473Z and has not been modified since then. The NVD entry is currently Deferred. This HIGH severity vulnerability in the Linux kernel's bnxt_en driver could allow an attacker to cause a denial of service. The issue occurs in the XDP_TX path within the bnxt_rx_xdp() function, where incorre [truncated]
A vulnerability in the Linux kernel has been resolved. The issue involves a deadlock on pernet_ops_rwsem caused by conntrack looping forever in nf_conntrack_cleanup_net_list(). This happens because nf_defrag_ipv6 loads before conntrack, causing its netns exit hooks to run after conntrack's. To fix this, all fragment queue SKBs are flushed during fqdir_pre_exit() to release conntrack references before conn [truncated]
The Linux kernel has a vulnerability in the ALSA firewire-motu module. A put_user() loop in the DSP event handling code copies event data. When the user buffer size is not aligned to 4 bytes, it could overwrite beyond the buffer boundary. The fix adds a bounds check before put_user(). This vulnerability may allow local attackers to escalate privileges or cause a denial-of-service. Linux kernel developers [truncated]
A vulnerability in the Linux kernel's EROFS (Enhanced Read-Only File System) implementation could allow infinite loops when processing crafted filesystem images. The issue affects subpage compact compression indexes where corrupted metadata can cause `clusterofs` to exceed `lclustersize` for non-head logical clusters. The fix relocates validation logic to `z_erofs_load_lcluster_from_disk()` to ensure prop [truncated]
CVE-2021-22555 is a Linux kernel heap out-of-bounds write vulnerability that CISA has added to its Known Exploited Vulnerabilities catalog. Because KEV status indicates active exploitation risk, affected Linux systems should be prioritized for patching or mitigation, especially where kernel exposure cannot be quickly reduced.
CVE-2025-38352 is a Linux kernel time-of-check time-of-use (TOCTOU) race condition that CISA added to the Known Exploited Vulnerabilities catalog on 2025-09-04. Because it is KEV-listed, organizations should treat it as a priority remediation item and follow vendor guidance promptly, with CISA’s due date set for 2025-09-25.
CVE-2025-38584 is a Linux kernel use-after-free in the padata path, specifically a race in padata_reorder that can let the pd reference go away after work is queued and the serial lock is released. NVD rates it 7.8 High with local, low-privilege attack conditions and high confidentiality, integrity, and availability impact. The kernel fix changes the ordering so the next padata is obtained before releasin [truncated]