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。

  - f2fs可从无效上下文调用 vm_unmap_ram()当使用 UFS 支持的虚拟磁盘通过 xfstests 测试 F2FS 时内核有时会抱怨 f2fs_release_decomp_mem() 从无效上下文调用 vm_unmap_ram()。f2fs/007 测试的示例跟踪f2fs/007 5s ... [12:59:38][ 8.902525] 运行 fstests f2fs/007 [ 11.468026] 缺陷从 mm/vmalloc.c 的无效上下文调用的休眠函数2978 [11.471849] in_atomic(): 1, irqs_disabled(): 1, non_block0, pid:68, name: irq/22-ufshcd [ 11.475357] preempt_count: 1,预期: 0 [ 11.476970] RCU 嵌套深度0，预期0 [ 11.478531] CPU0 UID0 PID
    68 Commirq/22-ufshcd 受感染的 GW 6.16.0-rc5-xfstests-ufs-g40f92e79b0aa #9 PREEMPT(none) [ 11.478535] 受感染的[W]=WARN [ 11.478536] 硬件名称QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.478537] 调用跟踪[ 11.478543] <TASK> [ 11.478545] dump_stack_lvl+0x4e/0x70 [ 11.478554] __might_resched.cold+0xaf/0xbe [ 11.478557] vm_unmap_ram+0x21/0xb0 [11.478560] f2fs_release_decomp_mem+0x59/0x80 [ 11.478563] f2fs_free_dic+0x18/0x1a0 [ 11.478565] f2fs_finish_read_bio+0xd7/0x290 [ 11.478570blk_request_update_request 0xec/0x3b0 [ 11.478574] ? sbitmap_queue_clear+0x3b/0x60 [ 11.478576] scsi_end_request+0x27/0x1a0 [ 11.478582] scsi_io_completion+0x40/0x300 [ 11.478583] ufshcd_mcq_poll_cqe_lock+0xa3/0xe0 [ 11.478588] ufshcd_sl_intr+0x194/0x1f0 [ 11.478592] ufshcd_threaded_intr+0x68/0xb0 [ 11.478594]
    __pfx_irq_thread_fn+0x10/0x10 [ 11.478599] irq_thread_fn+0x20/0x60 [ 11.478602] ?
    __pfx_irq_thread_fn+0x10/0x10 [ 11.478603] irq_thread+0xb9/0x180 [ 11.478605] ?
    __pfx_irq_thread_dtor+0x10/0x10 [ 11.478607] ? __pfx_irq_thread+0x10/0x10 [ 11.478609] kthread+0x10a/0x230 [ 11.478614] ? __pfx_kthread+0x10/0x10 [ 11.478615] ret_from_fork+0x7e/0xd0 [ 11.478619] ?
    __pfx_kthread+0x10/0x10 [ 11.478621] ret_from_fork_asm+0x1a/0x30 [ 11.478623] </TASK> 此修补程序修改 f2fs_read_end_io() 内部的 in_task() 检查以便一并检查是否禁用中断。这可确保在中断处理程序中异步取消映射页面。 (CVE-2025-39731)

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-2025-39731

medium Nessus 插件 ID 264332

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