PatchSiren

Linux CVE debriefs · Page 48

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

Review Linux CVE published 2026-08-15

CVE-2026-72016

The Linux kernel vulnerability, CVE-2026-72016, causes NULL kobject warnings in cpuhp_smt_enable() on arm64 systems with 'maxcpus' greater than present CPUs. The issue arises from unregistered CPUs being marked as 'present' but lacking initialized per-cpu device objects. A fix has been applied to check the ACPI_MADT_ENABLED flag and manage the present mask properly. Linux kernel administrators and users o [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-72015

The CVE-2026-72015 vulnerability is a double-free issue in the Linux kernel's fs/resctrl component. A pseudo-locked group's RMID is freed when it is created and again during unmount, resulting in a double-free error. This issue affects Linux kernel users and administrators, especially those using pseudo-locked groups. They should verify and mitigate its impact on their systems. The original free adds the [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-72014

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-15T06:21:00.173Z and has not been modified since then. The Linux kernel vulnerability (CVE-2026-72014) exists in the drbd module, where a malicious peer can supply a negative data size, leading to out-of-bounds memory access. Official references from the Linux kernel Git repository confirm the fix f [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-72013

A NULL pointer dereference vulnerability was found in the Linux kernel's riscv's machine_kexec_prepare() function. The issue arises when image->segment[i].buf is NULL and is copied unchecked, potentially leading to a system crash. The vulnerability was resolved by adding a check before the data copy attempt. This vulnerability may allow an attacker to cause a denial of service (DoS) by crashing the system [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-72010

A Linux kernel vulnerability was resolved, addressing a divide-by-zero error when rebinding a VMA mempolicy with MPOL_F_RELATIVE_NODES in response to a CPU hotplug event. The issue arose when creating a child cpuset without setting cpuset.mems, leading to a null nodemask. The fix uses cs->effective_mems instead of cs->mems_allowed to ensure a non-empty nodemask.

Review Linux CVE published 2026-08-15

CVE-2026-72009

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-15T06:20:59.570Z and has not been modified since then. This vulnerability affects the Linux kernel, specifically in the pmdomain and MIPI DSI/CSI domains. The vulnerability has been resolved by introducing a shared MIPI PHY power domain to manage common resources. Linux kernel users and administrato [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-72006

The CVE-2026-72006 vulnerability is related to a memory leak in the Linux kernel's net/mlx5 component. This issue arises from the failure to free the mlx5_st_idx_data allocation when the last reference to an ST table entry is dropped. Linux kernel users and administrators should be aware of this vulnerability and take steps to mitigate it. The vulnerability has been resolved by freeing idx_data after xa_e [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-72005

The Linux kernel's rt2x00 wifi driver has a vulnerability (CVE-2026-72005) that can cause a denial of service or potentially allow a local attacker to execute arbitrary code. The vulnerability occurs when the rt2x00lib_probe_dev() function uses the full rt2x00lib_remove_dev() teardown for all probe failures. However, drv_data allocation and workqueue allocation can fail before intf_work, autowakeup_work, [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-72004

A memory leak vulnerability was found in the Linux kernel's mac80211 subsystem. The issue occurs when the `kmemdup` function fails while copying supported band structures in the `ieee80211_register_hw` function. This leads to a memory leak of the initialized `local->rate_ctrl` if the error path jumps to `fail_rate` without calling `rate_control_deinitialize`. The bug was first flagged by an experimental a [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-72003

A heap overflow vulnerability was found in the Linux kernel's brcmfmac driver. The brcmf_notify_auth_frame_rx function does not properly validate the length of authentication frames received from the firmware, leading to a potential heap overflow when copying the frame body. This issue can be triggered remotely by a malicious or malfunctioning AP during the external SAE auth exchange. Linux kernel develop [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68479

The Linux kernel vulnerability (CVE-2026-68479) affects Bluetooth setup, allowing a malformed firmware patch to cause an oversized read and write. This issue can be mitigated by validating patch length and range without arithmetic overflow before allocating or copying the patch. Linux kernel maintainers, users, and administrators should prioritize patching to prevent potential Bluetooth setup issues. A co [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68478

A Linux kernel vulnerability was resolved in the memstick driver ms_block, which previously accepted cards reporting too many blocks, potentially leading to a buffer overflow. The fix adds a check to reject cards with more than 8192 blocks, preventing this issue. This change impacts Linux kernel developers and users, as well as cybersecurity teams. The vulnerability was made public on 2026-08-15.

Review Linux CVE published 2026-08-15

CVE-2026-68477

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-15T06:20:47.440Z and has not been modified since then. The Linux kernel vulnerability in ipvs could cause problems with IPv6 transport offsets. This issue was resolved by fixing more places with wrong ipv6 transport offsets. Linux kernel users, system administrators, and security teams should be awa [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68475

A memory region leak vulnerability has been identified in the Linux kernel's sunxi reset driver. The issue arises when the ioremap() function fails in the sunxi_reset_init() function, resulting in a resource leak due to the failure to release the memory region obtained via request_mem_region(). This vulnerability can cause memory leaks and potentially lead to denial-of-service (DoS) attacks or other secur [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68474

The Linux kernel has a vulnerability in the powerpc/spufs component. The spufs_mem_mmap_access() function incorrectly calculates the local store offset, leading to an out-of-bounds access. This issue has been resolved. The vulnerability affects systems running the affected Linux kernel versions. Users and administrators should review the supplied official advisory or CVE record to validate affected scope, [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68473

A vulnerability was found in the Linux kernel's powerpc/uaccess implementation. The mask_user_address() function incorrectly checked for CONFIG_E500 instead of CONFIG_PPC_E500, which caused mask_user_address_isel() not to be used on E500 hardware. The issue has been resolved by correcting the check to use the correct configuration name. This vulnerability affects Linux kernel developers and users, especia [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68472

The Linux kernel vulnerability (CVE-2026-68472) is a buffer overflow issue in the cfg80211_gen_new_ie function when handling EHT MLE elements in MBSSID beacons. Affected product or component: Linux kernel. Vulnerability class: Buffer Overflow. Likely operational impact: Malicious access, potential code execution. Source-confidence limits: High. Review context: Verify Linux kernel configurations, apply pat [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68471

The Linux kernel has a vulnerability related to wifi MLE common info length validation. This issue affects Linux kernel wifi systems, particularly those using ieee80211_mle_common_size() and ieee80211_mle_size_ok() functions. The vulnerability allows for potential wifi MLE-related issues due to improper validation of the advertised common information length for all known MLE types, including Reconfigurati [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68470

The Linux kernel's mac80211 subsystem has a vulnerability that could allow an attacker to trigger a denial-of-service condition or potentially execute arbitrary code due to a lack of validation of extension-frame layout before RX processing. This issue affects Linux kernel developers, administrators, and users of Wi-Fi enabled systems. The vulnerability arises from the lack of validation of extension-fram [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68469

The Linux kernel has a vulnerability that causes permanently busy scans after multiple roam iterations in the mwifiex driver. This issue arises from the driver incorrectly handling power save states during association commands, leading to a deferred sleep-confirm command not being sent. As a result, subsequent scan requests fail with -EBUSY. The vulnerability is caused by the driver unconditionally settin [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68466

A vulnerability in the Linux kernel's mtd: rawnand: lpc32xx_slc component has been addressed. The lpc32xx_xmit_dma() function did not properly handle DMA completion timeouts, potentially leading to unmapped and reported successful transfers. The issue has been resolved by returning -ETIMEDOUT when the completion wait expires and terminating the DMA channel before unmapping the scatterlist.

Review Linux CVE published 2026-08-15

CVE-2026-68464

The Linux kernel vulnerability causes an unhandled interrupt issue in mmc sdhci-esdhc-imx, leading to a 'nobody cared' warning. This issue arises when WIFI out-of-band wakeup triggers system resume, and the usdhc interrupt is not disabled during system suspend. The affected product or component is the Linux kernel with mmc sdhci-esdhc-imx. The vulnerability class is related to improper handling of interru [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68462

The Linux kernel has a vulnerability, CVE-2026-68462, that has been resolved. The verifier rejects variable offsets for PTR_TO_TP_BUFFER and PTR_TO_BUF accesses, but it currently accepts a constant negative offset produced by pointer arithmetic. This vulnerability can be exploited by an attacker to gain unauthorized access to sensitive data. The vulnerability is related to the Linux kernel's handling of b [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68460

A deadlock vulnerability was found in the f2fs_balance_fs function of the Linux kernel. This issue arises when the filesystem space is nearly exhausted, leading to tasks becoming blocked for extended periods. The problem is caused by a complex interplay of system resources and file system operations, which can result in a significant system hang. Multiple tasks become blocked for over 120 seconds, indicat [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68459

A potential deadlock vulnerability was found in the Linux kernel's f2fs file system when the gc_merge mount option is used. The deadlock can occur between a kworker, GC thread, and truncator. This issue can lead to system crashes or freezes if exploited. Linux kernel developers, administrators, and users of systems with f2fs file systems should review their configurations and apply patches or updates to r [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68458

The Linux kernel has a vulnerability in the binder cache secctx size calculation, leading to an incorrect buffer end offset calculation and potential buffer overflow. This issue arises from the subtraction of the aligned LSM context size from the scatter-gather buffer area, which uses a zeroed lsmctx.len field. The aligned size must be cached before release to prevent this issue. Affected Linux kernel dev [truncated]

Review Linux CVE published 2026-08-15

CVE-2026-68455

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-15T06:17:17.160Z and has not been modified since then. The Linux kernel liveupdate subsystem does not properly validate session types before performing operations, allowing users to perform invalid operations and potentially causing file handlers to encounter unexpected errors. This vulnerability af [truncated]

Review Linux CVE published 2026-08-12

CVE-2026-68434

A NULL pointer dereference vulnerability was found in the Linux kernel's serial: 8250_mid driver. The vulnerability occurs due to missing NULL checks before calling setup and exit callbacks on Denverton (DNV), Ice Lake Xeon D (ICX-D/CDF), or Snowridge (SNR) platforms. This vulnerability can cause a kernel oops on affected systems. Linux kernel developers and administrators responsible for maintaining syst [truncated]

CRITICAL Linux CVE published 2026-08-12

CVE-2026-68431

A vulnerability in the Linux kernel has been resolved, where the receive path did not apply the minimum SMB2 PDU size check for transform requests, allowing a short transform packet to reach init_smb2_rsp_hdr(). This issue, identified as CVE-2026-68431, involves a critical vulnerability with a CVSS score of 9.1. The vulnerability enables potential information disclosure because the receive path fails to a [truncated]

Review Linux CVE published 2026-08-10

CVE-2026-68367

A use-after-free vulnerability was found in the Linux kernel's USB gadget function f_tcm. The delayed set_alt work may access freed memory, leading to a slab-use-after-free error. This issue has been resolved by synchronizing the delayed set_alt work with teardown. The vulnerability was reported via a KASAN (Kernel Address Sanitizer) error report showing a slab-use-after-free in tcm_delayed_set_alt. Linux [truncated]