CVE-2026-53275— IPv6 组播处理 MLD 查询时存在 Use-After-Free 漏洞
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一、 漏洞 CVE-2026-53275 基础信息
漏洞信息
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Vulnerability Title
ipv6: mcast: Fix use-after-free when processing MLD queries
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Fix use-after-free when processing MLD queries When processing an MLD query, a pointer to the multicast group address is retrieved when initially parsing the packet. This pointer is later dereferenced without being reloaded despite the fact that the skb header might have been reallocated following the pskb_may_pull() calls, leading to a use-after-free [1]. Fix by copying the multicast group address when the packet is initially parsed. [1] BUG: KASAN: slab-use-after-free in __mld_query_work (net/ipv6/mcast.c:1512) Read of size 8 at addr ffff8881154b8e90 by task kworker/4:1/118 Workqueue: mld mld_query_work Call Trace: <TASK> dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) print_address_description.constprop.0 (mm/kasan/report.c:378) print_report (mm/kasan/report.c:482) kasan_report (mm/kasan/report.c:595) __mld_query_work (net/ipv6/mcast.c:1512) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245) </TASK> [...] Freed by task 118: kasan_save_stack (mm/kasan/common.c:57) kasan_save_track (mm/kasan/common.c:78) kasan_save_free_info (mm/kasan/generic.c:584) __kasan_slab_free (mm/kasan/common.c:253 mm/kasan/common.c:285) kfree (./include/linux/kasan.h:235 mm/slub.c:2689 mm/slub.c:6251 mm/slub.c:6566) pskb_expand_head (net/core/skbuff.c:2335) __pskb_pull_tail (net/core/skbuff.c:2878 (discriminator 4)) __mld_query_work (net/ipv6/mcast.c:1495 (discriminator 1)) mld_query_work (net/ipv6/mcast.c:1563) process_one_work (kernel/workqueue.c:3314) worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
N/A
来源: 美国国家漏洞数据库 NVD
受影响产品
二、漏洞 CVE-2026-53275 的公开POC
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CVE-2026-53275 补丁与修复 (6)
CVE-2026-53275 其他参考 (1)
同批安全公告 · Linux · 2026-06-25 · 共 147 条
| CVE-2026-53185 | Linux zram zram_bvec_write_partial 函数 Use-After-Free 漏洞 | |
| CVE-2026-53167 | fuse 漏洞：限制 FUSE_NOTIFY_RETRIEVE 仅限 uptodate 文件 | |
| CVE-2026-53168 | fuse目录页缓存操作拒绝漏洞 | |
| CVE-2026-53169 | accel/ethosu：拒绝用户空间NPU_OP_RESIZE命令 | |
| CVE-2026-53171 | 加速伦理：修复dma_length()中的算术问题 | |
| CVE-2026-53170 | Acceler/ethosu：拒绝长度未初始化的DMA命令漏洞 | |
| CVE-2026-53172 | Ethos-U NPU驱动IFM区域索引越界漏洞 | |
| CVE-2026-53174 | overlay文件系统o v l缓存获取后错误码未清零漏洞 | |
| CVE-2026-53173 | Accelerate Ethos-U 命令流校验越界写入漏洞 | |
| CVE-2026-53175 | Linux inet frag使用完后释放漏洞 | |
| CVE-2026-53177 | bnxt_en 驱动空指针解引用漏洞 | |
| CVE-2026-53176 | IB/isert: 拒绝短于ISER_HEADERS_LEN的登录PDU漏洞 | |
| CVE-2026-53178 | rtl8723bs驱动ie_length减法越界漏洞 | |
| CVE-2026-53180 | Linux 内核 tmigr_handle_remote_up() 活锁漏洞 | |
| CVE-2026-53179 | RTL8723BS rtw_update_protection 缓冲区越界读取漏洞 | |
| CVE-2026-53181 | vsock/vmci 握手失败时 sk_ack_backlog 泄漏漏洞 | |
| CVE-2026-53182 | wifi: nl80211 拒绝过大的 EMA RNR 列表 | |
| CVE-2026-53183 | MPTCP 子流接收窗口收缩漏洞 | |
| CVE-2026-53184 | UDP sockmap裁决前清除skb->dev | |
| CVE-2026-53196 | USB io_ti get_manuf_info()堆溢出漏洞 |
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IV. Related Vulnerabilities
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