CVE-2022-29968

CVE-2022-29968 Proof-of-concept exploit for CVE-2022-29968 uninitialized memory in the Linux Kernel, specifically the iouring system. The crash was found with Syzkaller. The crash was analyzed by Joseph Ravichandran and Michael Wang. The exploit was written by Joseph Ravichandran. We found &...

syzkaller

syzkaller - 内核模糊测试器 syzkaller siːzˈkɔːlə 是一个无监督的覆盖引导内核模糊测试器。 支持的操作系统：FreeBSD、Fuchsia、gVisor、Linux、NetBSD、OpenBSD、Windows。 邮件列表：[email protected]（可在网页或通过电子邮件加入）。 已发现的漏洞：Darwin/XNU、FreeBSD、Linux、NetBSD、OpenBSD、Windows。 文档 最初，syzkaller 是为 Linux 内核模糊测试而开发的，但现在 它也正在扩展，以支持其他操作系统内核。 目前大部分文档都与 Linux...

CVE-2023-52927

CVE-2023-52927 CVE-2023-52927 的本地权限提升漏洞利用——netfilter 中的释放后使用漏洞。 我的漏洞分析文章：CVE-2023-52927 - 将遗忘的 Syzkaller 报告转化为 kCTF 漏洞利用 重现代码：KASAN 触发 POC 构建 安装依赖： root@kitploit: make prerequisites 构建漏洞利用： root@kitploit: make exploit 目标 kCTF cos-109-17800.436.33 机器： 内核镜像...

CVE-2026-80852

CVE-2026-80852 is an out-of-bounds write in the Linux kernel's TLS device offload path (net/tls/tls_device.c). The root cause is that tls_push_data() skips its fragment-count check on an early MSG_MORE break, allowing num_frags to exceed MAX_SKB_FRAGS (17) when splice(SPLICE_F_MORE) calls are iss...

CVE-2026-80616

CVE-2026-80616 affects the Linux kernel ieee802154 subsystem. The issue occurs in cfg802154_switch_netns() , where calling WARN_ON() on -ENOMEM returned by dev_change_net_namespace() and device_rename() produces spurious kernel splats when deliberate fault injections are active. This is a low-imp...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: arp: Prevent overflow in arpreqget. Syzkaller reported an overflow during the write operation in arpreqget. 0 When the ioctlSIOCGARP function is called, arpreqget retrieves a neighbor entry and copies neigh-ha to struct...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: PID: Taking a reference when initializing cadpid During boot, kernelinitfreeable initializes cadpid to the struct pid of the init task. Later, we may change cadpid via sysctl. When this happens, procdocadpid will increment the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: kernfs: A use-after-free issue has been fixed in kernfsremove. Syzkaller managed to trigger concurrent calls to kernfsremovebynamens for the same file, resulting in a KASAN detected use-after-free. This race condition occurs...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ppp: Associating skb with a device at tx. Syzkaller triggered a flow dissector warning with the following code: c r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e,...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Wifi: ath9k: htchst: In the ath9khtcrxmsg function, if there is no callback function, the provided skb is not freed. It is stated that ath9khtcrxmsg either frees the provided skb or passes its management to another callback...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: Clear nfctarget before being used A slab-out-of-bounds read occurred in nlaput, called from nfcgenlsendtarget. This issue arises when target-sensbreslen is too large; this value is duplicated from an nfctarget in pn53...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: scsi: scsi.debug: Fixed an out-of-bound read in respreporttgtpgs. The following issues were observed while running syzkaller: BUG: KASAN: Out-of-bound access in memcpy in include/linux/string.h:377 inline. BUG: KASAN:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix tcpinittransfer so that icskcainitialized is not reset. This commit fixes a bug identified by syzkaller that could cause spurious double-initizations for congestion control modules. This could lead to memory leaks or oth...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Wifi: ar5523: Fixed a use-after-free in ar5523cmd when it timed out. syzkaller reported a use-after-free with the stack trace as follows 1: 38.960489 C3 ================================================================== 38.963216...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Handling of integer overflows in kmallocreserve The committed change was as follows: c ptr = kmallocsize; if ptr size = ksizeptr; size = kmallocsizeroundupsize; ptr = kmallocsize; This caused various crashes, as reported ...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: gtp: Fixed a use-after-free in gtpencapdestroy. syzkaller reported a use-after-free in gtpencapdestroy. The same process freed “sk” and accessed it illegally. Commit e198987e7dd7 “gtp: fix suspicious RCU usage” added locksock...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nfs: Clean up /proc/net/rpc/nfs when nfsfsprocnetinit fails. The syzbot reported a warning below 1 after a fault injection in nfsfsprocnetinit. 0 When nfsfsprocnetinit fails, /proc/net/rpc/nfs is not removed. Later, rpcprocexit...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: fixed the lockdep issue in qdisctreereducebacklog qdisctreereducebacklog is called with the qdisc lock held, not RTNL. We must use qdisclookuprcu instead of qdisclookup syzbot reported: WARNING: suspicious RCU usage...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Wifi: ath9k – Do not allow overwriting of ENDPOINT0 attributes A malicious USB device can construct a service connection response message with the target endpoint being ENDPOINT0, which is reserved for HTCCTRLRSVDSVC and should n...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: FS: JFS: Fixed the null-ptr-deref read operation in txBegin. Syzkaller reported a issue where txBegin might be called on a superblock within a read-only mounted file system, leading to a NULL pointer dereference. This issue can b...