CyberSecurityBoard
Sponsor Register Login

CVE-2021-47222

In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst refcnt when egressing The egress tunnel code uses dst_clone() and directly sets the result which is wrong because the entry might have 0 refcnt or be already deleted, causing number of problems. It also triggers the WARN_ON() in dst_hold()[1] when a refcnt couldn't be taken. Fix it by using dst_hold_safe() and checking if a reference was actually taken before setting the dst. [1] dmesg WARN_ON log and following refcnt errors WARNING: CPU: 5 PID: 38 at include/net/dst.h:230 br_handle_egress_vlan_tunnel+0x10b/0x134 [bridge] Modules linked in: 8021q garp mrp bridge stp llc bonding ipv6 virtio_net CPU: 5 PID: 38 Comm: ksoftirqd/5 Kdump: loaded Tainted: G W 5.13.0-rc3+ #360 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/2014 RIP: 0010:br_handle_egress_vlan_tunnel+0x10b/0x134 [bridge] Code: e8 85 bc 01 e1 45 84 f6 74 90 45 31 f6 85 db 48 c7 c7 a0 02 19 a0 41 0f 94 c6 31 c9 31 d2 44 89 f6 e8 64 bc 01 e1 85 db 75 02 <0f> 0b 31 c9 31 d2 44 89 f6 48 c7 c7 70 02 19 a0 e8 4b bc 01 e1 49 RSP: 0018:ffff8881003d39e8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffffa01902a0 RBP: ffff8881040c6700 R08: 0000000000000000 R09: 0000000000000001 R10: 2ce93d0054fe0d00 R11: 54fe0d00000e0000 R12: ffff888109515000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000401 FS: 0000000000000000(0000) GS:ffff88822bf40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f42ba70f030 CR3: 0000000109926000 CR4: 00000000000006e0 Call Trace: br_handle_vlan+0xbc/0xca [bridge] __br_forward+0x23/0x164 [bridge] deliver_clone+0x41/0x48 [bridge] br_handle_frame_finish+0x36f/0x3aa [bridge] ? skb_dst+0x2e/0x38 [bridge] ? br_handle_ingress_vlan_tunnel+0x3e/0x1c8 [bridge] ? br_handle_frame_finish+0x3aa/0x3aa [bridge] br_handle_frame+0x2c3/0x377 [bridge] ? __skb_pull+0x33/0x51 ? vlan_do_receive+0x4f/0x36a ? br_handle_frame_finish+0x3aa/0x3aa [bridge] __netif_receive_skb_core+0x539/0x7c6 ? __list_del_entry_valid+0x16e/0x1c2 __netif_receive_skb_list_core+0x6d/0xd6 netif_receive_skb_list_internal+0x1d9/0x1fa gro_normal_list+0x22/0x3e dev_gro_receive+0x55b/0x600 ? detach_buf_split+0x58/0x140 napi_gro_receive+0x94/0x12e virtnet_poll+0x15d/0x315 [virtio_net] __napi_poll+0x2c/0x1c9 net_rx_action+0xe6/0x1fb __do_softirq+0x115/0x2d8 run_ksoftirqd+0x18/0x20 smpboot_thread_fn+0x183/0x19c ? smpboot_unregister_percpu_thread+0x66/0x66 kthread+0x10a/0x10f ? kthread_mod_delayed_work+0xb6/0xb6 ret_from_fork+0x22/0x30 ---[ end trace 49f61b07f775fd2b ]--- dst_release: dst:00000000c02d677a refcnt:-1 dst_release underflow

Publication date: Tue, 21 May 2024 15:15:00 +0000


Cyber News related to CVE-2021-47222

CVE-2021-28352 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, ...
3 years ago
CVE-2021-28346 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, ...
3 years ago
CVE-2021-28358 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, ...
3 years ago
CVE-2021-28334 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28335, CVE-2021-28336, CVE-2021-28337, ...
3 years ago
CVE-2021-28341 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, ...
3 years ago
CVE-2021-28332 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, CVE-2021-28337, ...
3 years ago
CVE-2021-28335 - Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28336, CVE-2021-28337, ...
3 years ago
CVE-2021-46976 - In the Linux kernel, the following vulnerability has been resolved: ...
8 months ago
CVE-2021-47222 - In the Linux kernel, the following vulnerability has been resolved: ...
5 months ago
CVE-2023-47222 - An exposure of sensitive information vulnerability has been reported to affect Media Streaming add-on. If exploited, the vulnerability could allow users to compromise the security of the system via a network. ...
6 months ago
CVE-2024-47222 - New Cloud MyOffice SDK Collaborative Editing Server 2.2.2 through 2.8 allows SSRF via manipulation of requests from external document storage via the MS-WOPI protocol. ...
1 month ago
CVE-2021-45977 - JetBrains IntelliJ IDEA 2021.3.1 Preview, IntelliJ IDEA 2021.3.1 RC, PyCharm Professional 2021.3.1 RC, GoLand 2021.3.1, PhpStorm 2021.3.1 Preview, PhpStorm 2021.3.1 RC, RubyMine 2021.3.1 Preview, RubyMine 2021.3.1 RC, CLion 2021.3.1, WebStorm ...
2 years ago
CVE-2021-45511 - Certain NETGEAR devices are affected by authentication bypass. This affects AC2100 before 2021-08-27, AC2400 before 2021-08-27, AC2600 before 2021-08-27, D7000 before 2021-08-27, R6220 before 2021-08-27, R6230 before 2021-08-27, R6260 before ...
2 years ago
Vulnerability Summary for the Week of March 11, 2024 - Published 2024-03-15 CVSS Score not yet calculated Source & Patch Info CVE-2021-47111416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67 PrimaryVendor - Product linux - linux Description In the ...
7 months ago Cisa.gov
CVE-2021-47130 - In the Linux kernel, the following vulnerability has been resolved: ...
7 months ago
SecurityWeek Analysis: Over 450 Cybersecurity M&A Deals Announced in 2022 - MSSPs took the lead in cybersecurity M&A in 2022 with twice as many deals as in 2021. An analysis conducted by SecurityWeek shows that more than 450 cybersecurity-related mergers and acquisitions were announced in 2022. In 2022, we tracked a total of ...
1 year ago Securityweek.com
CVE-2021-26902 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-24110 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-24089 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-27051 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-27061 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27062. ...
3 years ago
CVE-2021-27062 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061. ...
3 years ago
CVE-2021-27049 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27048, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-27047 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27048, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago
CVE-2021-27048 - HEVC Video Extensions Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24089, CVE-2021-24110, CVE-2021-26902, CVE-2021-27047, CVE-2021-27049, CVE-2021-27050, CVE-2021-27051, CVE-2021-27061, CVE-2021-27062. ...
3 years ago

Latest Cyber News


Cyber Trends (last 7 days)


Trending Cyber News (last 7 days)