CVE-2026-98061

The Linux kernel contains a vulnerability in the BPF verifier where tail calls made directly from synchronous callback frames trigger a verifier bug. The root cause is that prepare_func_exit() marks register R0 as precise for callbacks, but the tail-call path synthesizes R0 instead of deriving it...

CVE-2026-92516: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix offset warn check for bpfresspinlock Sashiko pointed out correctly that the case statement for BPFRESSPINLOCK incorrectly checks offset for BPFSPINLOCK. Fix it by checking resspinlockoff instead...

AZL-101370 CVE-2026-89926 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix length check importwpinfo struct kvmhwbreakpoint::len is a u64 that is fully controlled by user space. This is then assigned to wpinfo-len, which is an int. The bounds check is done on the truncated value while the...

CVE-2026-89926

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix length check importwpinfo struct kvmhwbreakpoint::len is a u64 that is fully controlled by user space. This is then assigned to wpinfo-len, which is an int. The bounds check is done on the truncated value while the...

DEBIAN-CVE-2026-89926

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix length check importwpinfo struct kvmhwbreakpoint::len is a u64 that is fully controlled by user space. This is then assigned to wpinfo-len, which is an int. The bounds check is done on the truncated value while the...

CVE-2026-89926 KVM: s390: Fix length check __import_wp_info()

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix length check importwpinfo struct kvmhwbreakpoint::len is a u64 that is fully controlled by user space. This is then assigned to wpinfo-len, which is an int. The bounds check is done on the truncated value while the...

CVE-2026-89926

CVE-2026-89926 affects the Linux kernel KVM s390 subsystem in the __import_wp_info() function. The root cause is a type truncation : the user-space-controlled kvm_hw_breakpoint::len (a __u64) is assigned to wp_info->len (an int). The bounds check evaluates the truncated value, but the subseque...

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

In the Linux kernel, the following vulnerability has been resolved: net: hsr: The WARNONCE function was removed from the sendhsrsupervisionframe function. Syzkaller reported 1 that a warning occurred after attempting to allocate resources for skb in hsrinitskb. Since calling WARNONCE does not...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: kprobes: Do not call disarmkprobe for disabled kprobes The assumption in disablekprobe is incorrect, and it may attempt to disarm a kprobe that is already disarmed, thereby triggering WARNONCE below. This issue can be easily...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: staticcall: The unnecessary WARNON call in staticcallmodulenotify should be replaced. staticcallmodulenotify triggers a WARNON when memory allocation fails in staticcalladdmodule. This approach isn’t really justified, because the...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: KEYS: Trusted – Do not use WARN when encode fails When asn1encodesequence fails, using WARN is not the correct solution. 1. asn1encodesequence is not an internal function located in lib/asn1encode.c. 2. Its location is known,...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinklog: account for netlink header size This is a follow-up to an earlier bug fix: NLMSGDONE needs to account for the netlink header size, not just the attribute size. This may result in a WARN message and a loss...

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

In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix errant WARNONONCE in j1939sessiondeactivate The statement “j1939sessiondeactivate should be called with a session ref-count of at least 2” is incorrect. In some concurrent scenarios, j1939sessiondeactivate can be...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bonding: Unnecessary warnings and logs from bondxdpgetxmitslave have been fixed. syzbot reported a warning in bondxdpgetxmitslave. To reproduce this issue1, one bonding device bond1 should have xdpdrv, which increases...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: hsr: avoided possible NULL dereference in skbclone The syzbot encountered a crash 1 in skbclone, caused by a bug in hsrgetuntaggedframe. When/if createstrippedskbhsr returns NULL, we must not attempt to call skbclone...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: mISDN: A possible memory leak in mISDNregisterdevice has been fixed. After committing 1fa5ae857bb1 "driver core: get rid of struct device’s busid string array", the name of the device is allocated dynamically. The putdevice...

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

In the Linux kernel, the following vulnerability has been resolved: Closures: Change BUGON to WARNON If a BUGON function is actually executed, it shouldn’t be considered a real BUG. For reference, this issue has occurred once during the continuous integration process. We will need more informatio...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: KEYS: prevented NULL pointer dereference in findasymmetrickey. In findasymmetrickey, if all NULL values are passed as arguments to id0,1,2, the kernel will first emit a WARN message, but then there will be an oops because id2 wil...

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

In the Linux kernel, the following vulnerability has been resolved: HID: core: removed the unnecessary WARNON function in the implement function. The syzkaller triggered a warning 1 when calling implement, attempting to write a value into a field of smaller size in an output report. Since impleme...

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: wifi: ath6kl – removed the WARN message for bad firmware inputs. If the firmware provides incorrect inputs, it has nothing to do with the driver’s stack at this point; therefore, the WARN message doesn’t add any value...