Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - page_pool修复 page_pool_recycle_in_ring 中的释放后使用 syzbot 报告了 page_pool_recycle_in_ring: 中的 uafBUGKASANlock_release+0x151/0xa30 kernel/locking/lockdep.c:5862 地址中大小 8 的 slab 释放后使用读取ffff8880286045a0（来自任务 syz.0.284/6943 CPU: 0 UID: 0 PID: 6943 Comm: syz.0.284 Not tainted 6.13.0-rc3-syzkaller-gdfa94ce54f41 #0 硬件名称：Google Google Compute Engine/Google Compute Engine、BIOS Google 09） /13/2024 调用跟踪 <TASK> __dump_stack lib/dump_stack.c:94 [内联] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [内联] print_report+0x169/0x550 mm/kasan/report.c:489 kasan_report+0x143/0x180 mm/kasan/report.c:602 lock_release+0x151/0xa30 kernel/locking/lockdep.c:5862 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:165 [inline] _raw_spin_unlock_bh+0x1b/0x40 kernel/locking/ spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [内联] ptr_ring_product_bh include/linux/ptr_ring.h:164 [内联] page_pool_recycle_in_ring net/core/page_pool.c:707 [内联] page_pool_put_unrefed_netmem+0x748/0xb00 net /core/page_pool.c:826 page_pool_put_netmem include/net/page_pool/helpers.h:323 [内联] page_pool_put_full_netmem include/net/page_pool/helpers.h:353 [内联] napi_pp_put_page+0x149/0x2b0 net/core/skbuff.c :1036 skb_pp_recycle net/core/skbuff.c:1047 [内联] skb_free_head net/core/skbuff.c:1094 [内联] skb_release_data+0x6c4/0x8a0 net/core/skbuff.c:1125 skb_re Lease_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242 kfree_skb_reason include/linux/skbuff.h:1263 [inline] __skb_queue_purge_reason include/linux/skbuff.h:3343 [inline] 根本原因为
    page_pool_recycle_in_ring ptr_ring_product spin_lock(&r-> Producer_lock);
    WRITE_ONCE(r->queue[r-> Producer ++], ptr) //回收最后一页到池 page_pool_release page_pool_scrub page_pool_empty_ring ptr_ring_consume page_pool_return_page //释放所有页 __page_pool_destroy free_percpu(pool->recycle_stats); free(pool) //释放 spin_unlock(&r-> Producer_lock); //pool->ring uaf 读取 recycle_stat_inc(pool, ring);当页面池回收环中的最后一个页面时 page_pool 可能会释放。向 page_pool_release 添加生产者锁定屏障以防止在回收所有页面之前释放页面池。当未启用 CONFIG_PAGE_POOL_STATS 时recycle_stat_inc() 为空这将触发 Wempty-body 构建警告。添加池 stat 宏的定义以修复警告。 (CVE-2025-38129)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

检测

Linux Distros 未修补的漏洞：CVE-2025-38129

high Nessus 插件 ID 246157

版本 1.25