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CVE-2025-21753— Linux kernel 资源管理错误漏洞

一分钟漏洞结论

影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在资源管理错误漏洞，该漏洞源于btrfs驱动在加入已中止事务时，可能存在释放后重用问题。

CVSS 7.8 · High EPSS 0.26% · P17

影响版本矩阵 18

厂商产品 版本范围状态
Linux Linux 871383be592ba7e819d27556591e315a0df38cee< cee55b1219568c80bf0d5dc55066e4a859baf753 affected
871383be592ba7e819d27556591e315a0df38cee< c7a53757717e68af94a56929d57f1e6daff220ec affected
871383be592ba7e819d27556591e315a0df38cee< 7e954b6bb95d67ae4d1a20e9cfd83c182cf929bc affected
871383be592ba7e819d27556591e315a0df38cee< 6ba4663ada6c6315af23a6669d386146634808ec affected
871383be592ba7e819d27556591e315a0df38cee< 8f5cff471039caa2b088060c074c2bf2081bcb01 affected
871383be592ba7e819d27556591e315a0df38cee< 86d71a026a7f63da905db9add845c8ee88801eca affected
871383be592ba7e819d27556591e315a0df38cee< ce628048390dad80320d5a1f74de6ca1e1be91e7 affected
871383be592ba7e819d27556591e315a0df38cee< e2f0943cf37305dbdeaf9846e3c941451bcdef63 affected
… +10 条更多
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一、 漏洞 CVE-2025-21753 基础信息

漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
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Vulnerability Title
btrfs: fix use-after-free when attempting to join an aborted transaction
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free when attempting to join an aborted transaction When we are trying to join the current transaction and if it's aborted, we read its 'aborted' field after unlocking fs_info->trans_lock and without holding any extra reference count on it. This means that a concurrent task that is aborting the transaction may free the transaction before we read its 'aborted' field, leading to a use-after-free. Fix this by reading the 'aborted' field while holding fs_info->trans_lock since any freeing task must first acquire that lock and set fs_info->running_transaction to NULL before freeing the transaction. This was reported by syzbot and Dmitry with the following stack traces from KASAN: ================================================================== BUG: KASAN: slab-use-after-free in join_transaction+0xd9b/0xda0 fs/btrfs/transaction.c:278 Read of size 4 at addr ffff888011839024 by task kworker/u4:9/1128 CPU: 0 UID: 0 PID: 1128 Comm: kworker/u4:9 Not tainted 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: events_unbound btrfs_async_reclaim_data_space Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x169/0x550 mm/kasan/report.c:489 kasan_report+0x143/0x180 mm/kasan/report.c:602 join_transaction+0xd9b/0xda0 fs/btrfs/transaction.c:278 start_transaction+0xaf8/0x1670 fs/btrfs/transaction.c:697 flush_space+0x448/0xcf0 fs/btrfs/space-info.c:803 btrfs_async_reclaim_data_space+0x159/0x510 fs/btrfs/space-info.c:1321 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> Allocated by task 5315: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x243/0x390 mm/slub.c:4329 kmalloc_noprof include/linux/slab.h:901 [inline] join_transaction+0x144/0xda0 fs/btrfs/transaction.c:308 start_transaction+0xaf8/0x1670 fs/btrfs/transaction.c:697 btrfs_create_common+0x1b2/0x2e0 fs/btrfs/inode.c:6572 lookup_open fs/namei.c:3649 [inline] open_last_lookups fs/namei.c:3748 [inline] path_openat+0x1c03/0x3590 fs/namei.c:3984 do_filp_open+0x27f/0x4e0 fs/namei.c:4014 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_creat fs/open.c:1495 [inline] __se_sys_creat fs/open.c:1489 [inline] __x64_sys_creat+0x123/0x170 fs/open.c:1489 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 5336: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:582 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2353 [inline] slab_free mm/slub.c:4613 [inline] kfree+0x196/0x430 mm/slub.c:4761 cleanup_transaction fs/btrfs/transaction.c:2063 [inline] btrfs_commit_transaction+0x2c97/0x3720 fs/btrfs/transaction.c:2598 insert_balance_item+0x1284/0x20b0 fs/btrfs/volumes.c:3757 btrfs_balance+0x992/ ---truncated---
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 资源管理错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在资源管理错误漏洞，该漏洞源于btrfs驱动在加入已中止事务时，可能存在释放后重用问题。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
Linux Linux 871383be592ba7e819d27556591e315a0df38cee ~ cee55b1219568c80bf0d5dc55066e4a859baf753 -
Linux Linux 3.4 -

二、漏洞 CVE-2025-21753 的公开POC

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三、漏洞 CVE-2025-21753 的情报信息

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CVE-2025-21753 补丁与修复 (5)

CVE-2025-21753 其他参考 (2)

同批安全公告 · Linux · 2025-02-27 · 共 177 条

CVE-2025-21805 9.8 CRITICAL Linux kernel 安全漏洞
CVE-2025-21707 9.8 CRITICAL Linux kernel 安全漏洞
CVE-2025-21796 9.8 CRITICAL Linux kernel 资源管理错误漏洞
CVE-2025-21748 9.8 CRITICAL Linux kernel 安全漏洞
CVE-2024-58006 9.6 CRITICAL Linux kernel 安全漏洞
CVE-2024-57997 8.8 HIGH Linux kernel 安全漏洞
CVE-2024-57995 8.8 HIGH Linux kernel 安全漏洞
CVE-2024-57999 8.8 HIGH Linux kernel 安全漏洞
CVE-2025-21735 8.8 HIGH Linux kernel 安全漏洞
CVE-2025-21710 8.2 HIGH Linux kernel 安全漏洞
CVE-2025-21760 8.1 HIGH Linux kernel 资源管理错误漏洞
CVE-2024-57973 8.1 HIGH Linux kernel 安全漏洞
CVE-2025-21766 8.1 HIGH Linux kernel 安全漏洞
CVE-2025-21762 8.1 HIGH Linux kernel 资源管理错误漏洞
CVE-2025-21765 8.1 HIGH Linux kernel 安全漏洞
CVE-2025-21786 7.8 HIGH Linux kernel 资源管理错误漏洞
CVE-2025-21729 7.8 HIGH Linux kernel 资源管理错误漏洞
CVE-2025-21730 7.8 HIGH Linux kernel 安全漏洞
CVE-2025-21785 7.8 HIGH Linux kernel 安全漏洞
CVE-2025-21722 7.8 HIGH Linux kernel 资源管理错误漏洞

显示前 20 条，共 177 条。 查看全部 &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21753

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