Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a failure to properly check for skb discard conditions in candev, which could lead to an out-of-bounds read...

Smart Water Security with AI and Blockchain-Enhanced Digital Twins

Water distribution systems in rural areas face serious challenges such as a lack of real-time monitoring, vulnerability to cyberattacks, and unreliable data handling. This paper presents an integrated framework that combines LoRaWAN-based data acquisition, a machine learning-driven Intrusion...

CAIBA: Multicast Source Authentication for CAN through Reactive Bit Flipping

Controller Area Networks CANs are the backbone for reliable intra-vehicular communication. Recent cyberattacks have, however, exposed the weaknesses of CAN, which was designed without any security considerations in the 1980s. Current efforts to retrofit security via intrusion detection or message...

DEBIAN-CVE-2021-47668

In the Linux kernel, the following vulnerability has been resolved: can: dev: canrestart: fix use after free bug After calling netifrxniskb, dereferencing skb is unsafe. Especially, the canframe cf which aliases skb memory is accessed after the netifrxni in: stats-rxbytes += cf-len; Reordering th...

UBUNTU-CVE-2020-36789

In the Linux kernel, the following vulnerability has been resolved: can: dev: cangetechoskb: prevent call to kfreeskb in hard IRQ context If a driver calls cangetechoskb during a hardware IRQ which is often, but not always, the case, the 'WARNONinirq' in net/core/skbuff.cskbreleaseheadstate might...

CVE-2020-36789 can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard IRQ context

In the Linux kernel, the following vulnerability has been resolved: can: dev: cangetechoskb: prevent call to kfreeskb in hard IRQ context If a driver calls cangetechoskb during a hardware IRQ which is often, but not always, the case, the 'WARNONinirq' in net/core/skbuff.cskbreleaseheadstate might...

Advisory ROSA-SA-2025-2832

Software: avahi 0.7 OS: ROSA Virtualization 2.1 packageevrstring: avahi-0.7-21.0.1.rv3 CVE-ID: CVE-2023-1981 BDU-ID: 2023-03858 CVE-Crit: MEDIUM CVE-DESC.: A vulnerability in the Avahi Local Area Network Service Discovery System involves uncontrolled resource consumption. Exploitation of the...

CVE-2025-27574

Cross-site scripting vulnerability exists in the USB storage file-sharing function of HGW-BL1500HM Ver 002.002.003 and earlier. If this vulnerability is exploited, an arbitrary script may be executed on the web browser of the user who is using the configuration page or functions accessible only...

SUSE CVE-2021-4454

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

The vulnerability of the Telnet protocol implementation in the microprogramming-based router software Tenda AC7 allows a hacker to execute arbitrary commands.

The vulnerability of the Telnet protocol implementation in the Tenda AC7 microprogramming router software lies in the lack of measures taken to clean data at the management level when processing the lanip parameter. Exploiting this vulnerability allows a remote attacker to execute arbitrary...

kernel: can: bcm: Fix UAF in bcm_proc_show()

In the Linux kernel, the following vulnerability has been resolved: can: bcm: Fix UAF in bcmprocshow BUG: KASAN: slab-use-after-free in bcmprocshow+0x969/0xa80 Read of size 8 at addr ffff888155846230 by task cat/7862 CPU: 1 PID: 7862 Comm: cat Not tainted 6.5.0-rc1-00153-gc8746099c197 230 Hardwar...

kernel: can: bcm: Fix UAF in bcm_proc_show()

In the Linux kernel, the following vulnerability has been resolved: can: bcm: Fix UAF in bcmprocshow BUG: KASAN: slab-use-after-free in bcmprocshow+0x969/0xa80 Read of size 8 at addr ffff888155846230 by task cat/7862 CPU: 1 PID: 7862 Comm: cat Not tainted 6.5.0-rc1-00153-gc8746099c197 230 Hardwar...

DEBIAN-CVE-2025-21775

In the Linux kernel, the following vulnerability has been resolved: can: ctucanfd: handle skb allocation failure If skb allocation fails, the pointer to struct canframe is NULL. This is actually handled everywhere inside ctucanerrinterrupt except for the only place. Add the missed NULL check. Fou...

SUSE CVE-2022-49234

In the Linux kernel, the following vulnerability has been resolved: net: dsa: Avoid cross-chip syncing of VLAN filtering Changes to VLAN filtering are not applicable to cross-chip notifications. On a system like this: .-----. .-----. .-----. | sw1 +---+ sw2 +---+ sw3 | '-1-2-' '-1-2-' '-1-2-'...

SUSE CVE-2022-49659

In the Linux kernel, the following vulnerability has been resolved: can: mcan: mcanreadfifo,echotxevent: shift timestamp to full 32 bits In commit 1be37d3b0414 "can: mcan: fix periph RX path: use rx-offload to ensure skbs are sent from softirq context" the RX path for peripheral devices was...

DEBIAN-CVE-2022-49659

In the Linux kernel, the following vulnerability has been resolved: can: mcan: mcanreadfifo,echotxevent: shift timestamp to full 32 bits In commit 1be37d3b0414 "can: mcan: fix periph RX path: use rx-offload to ensure skbs are sent from softirq context" the RX path for peripheral devices was...

DEBIAN-CVE-2022-49275

In the Linux kernel, the following vulnerability has been resolved: can: mcan: mcantxhandler: fix use after free of skb canputechoskb will clone skb then free the skb. Move the canputechoskb for the mcan version 3.0.x directly before the start of the xmit in hardware, similar to the 3.1.x branch...

UBUNTU-CVE-2022-49275

In the Linux kernel, the following vulnerability has been resolved: can: mcan: mcantxhandler: fix use after free of skb canputechoskb will clone skb then free the skb. Move the canputechoskb for the mcan version 3.0.x directly before the start of the xmit in hardware, similar to the 3.1.x branch...

UBUNTU-CVE-2022-49269

In the Linux kernel, the following vulnerability has been resolved: can: isotp: sanitize CAN ID checks in isotpbind Syzbot created an environment that lead to a state machine status that can not be reached with a compliant CAN ID address configuration. The provided address information consisted o...

UBUNTU-CVE-2022-49151

In the Linux kernel, the following vulnerability has been resolved: can: mcbausb: properly check endpoint type Syzbot reported warning in usbsubmiturb which is caused by wrong endpoint type. We should check that in endpoint is actually present to prevent this warning. Found pipes are now saved to...