CVE-2023-53862— Linux kernel 安全漏洞
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存在安全漏洞，该漏洞源于缺少hfs_bnode_get调用，可能导致内核BUG。
可能的 ATT&CK 技术 1 AI
T1203 · Exploitation for Client Execution影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 062af3e9930762d1fd22946748d34e0d859e4a8e |
affected |
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3a9065a33988c02789722be612f7c42fb8ebbb22 |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< eda6879272e4df5456afc36642052ea066f58410 |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< dc9f78b6d254427a06e568f2887b1011ef3143ef |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 2cab8db14566cf6a516c1f103a60cf6b7f54b1e5 |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 8140cdc57bc5844cd5e1392673ec2dbf8fdc6940 |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 38d72e6604b9f96dffcc0565090cc01622a37b2a |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< a9dc087fd3c484fd1ed18c5efb290efaaf44ce03 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2023-53862 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
hfs: fix missing hfs_bnode_get() in __hfs_bnode_create
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
hfs: fix missing hfs_bnode_get() in __hfs_bnode_create
Syzbot found a kernel BUG in hfs_bnode_put():
kernel BUG at fs/hfs/bnode.c:466!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3634 Comm: kworker/u4:5 Not tainted 6.1.0-rc7-syzkaller-00190-g97ee9d1c1696 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:hfs_bnode_put+0x46f/0x480 fs/hfs/bnode.c:466
Code: 8a 80 ff e9 73 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c a0 fe ff ff 48 89 df e8 db 8a 80 ff e9 93 fe ff ff e8 a1 68 2c ff <0f> 0b e8 9a 68 2c ff 0f 0b 0f 1f 84 00 00 00 00 00 55 41 57 41 56
RSP: 0018:ffffc90003b4f258 EFLAGS: 00010293
RAX: ffffffff825e318f RBX: 0000000000000000 RCX: ffff8880739dd7c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003b4f430 R08: ffffffff825e2d9b R09: ffffed10045157d1
R10: ffffed10045157d1 R11: 1ffff110045157d0 R12: ffff8880228abe80
R13: ffff88807016c000 R14: dffffc0000000000 R15: ffff8880228abe00
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa6ebe88718 CR3: 000000001e93d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
hfs_write_inode+0x1bc/0xb40
write_inode fs/fs-writeback.c:1440 [inline]
__writeback_single_inode+0x4d6/0x670 fs/fs-writeback.c:1652
writeback_sb_inodes+0xb3b/0x18f0 fs/fs-writeback.c:1878
__writeback_inodes_wb+0x125/0x420 fs/fs-writeback.c:1949
wb_writeback+0x440/0x7b0 fs/fs-writeback.c:2054
wb_check_start_all fs/fs-writeback.c:2176 [inline]
wb_do_writeback fs/fs-writeback.c:2202 [inline]
wb_workfn+0x827/0xef0 fs/fs-writeback.c:2235
process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>
The BUG_ON() is triggered at here:
/* Dispose of resources used by a node */
void hfs_bnode_put(struct hfs_bnode *node)
{
if (node) {
<skipped>
BUG_ON(!atomic_read(&node->refcnt)); <- we have issue here!!!!
<skipped>
}
}
By tracing the refcnt, I found the node is created by hfs_bmap_alloc()
with refcnt 1. Then the node is used by hfs_btree_write(). There is a
missing of hfs_bnode_get() after find the node. The issue happened in
following path:
<alloc>
hfs_bmap_alloc
hfs_bnode_find
__hfs_bnode_create <- allocate a new node with refcnt 1.
hfs_bnode_put <- decrease the refcnt
<write>
hfs_btree_write
hfs_bnode_find
__hfs_bnode_create
hfs_bnode_findhash <- find the node without refcnt increased.
hfs_bnode_put <- trigger the BUG_ON() since refcnt is 0.
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 安全漏洞
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存在安全漏洞，该漏洞源于缺少hfs_bnode_get调用，可能导致内核BUG。
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
二、漏洞 CVE-2023-53862 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
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未找到公开 POC。
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同批安全公告 · Linux · 2025-12-09 · 共 152 条
| CVE-2025-40343 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2022-50666 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2023-53794 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-40336 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53822 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-40328 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53785 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-40342 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53827 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53851 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-40337 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53803 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50656 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53816 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53790 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53819 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-40344 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53795 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53810 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53806 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 152 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2023-53862
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