CVE-2025-37780— 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isofs_fh_to_parent中使用了过小的fid，可能导致越界读取。
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< ee01a309ebf598be1ff8174901ed6e91619f1749 |
affected |
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 5e7de55602c61c8ff28db075cc49c8dd6989d7e0 |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 63d5a3e207bf315a32c7d16de6c89753a759f95a |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 0fdafdaef796816a9ed0fd7ac812932d569d9beb |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 952e7a7e317f126d0a2b879fc531b716932d5ffa |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 56dfffea9fd3be0b3795a9ca6401e133a8427e0b |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 007124c896e7d4614ac1f6bd4dedb975c35a2a8e |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 0405d4b63d082861f4eaff9d39c78ee9dc34f845 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2025-37780 基础信息
漏洞信息
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Vulnerability Title
isofs: Prevent the use of too small fid
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
isofs: Prevent the use of too small fid
syzbot reported a slab-out-of-bounds Read in isofs_fh_to_parent. [1]
The handle_bytes value passed in by the reproducing program is equal to 12.
In handle_to_path(), only 12 bytes of memory are allocated for the structure
file_handle->f_handle member, which causes an out-of-bounds access when
accessing the member parent_block of the structure isofs_fid in isofs,
because accessing parent_block requires at least 16 bytes of f_handle.
Here, fh_len is used to indirectly confirm that the value of handle_bytes
is greater than 3 before accessing parent_block.
[1]
BUG: KASAN: slab-out-of-bounds in isofs_fh_to_parent+0x1b8/0x210 fs/isofs/export.c:183
Read of size 4 at addr ffff0000cc030d94 by task syz-executor215/6466
CPU: 1 UID: 0 PID: 6466 Comm: syz-executor215 Not tainted 6.14.0-rc7-syzkaller-ga2392f333575 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C)
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:408 [inline]
print_report+0x198/0x550 mm/kasan/report.c:521
kasan_report+0xd8/0x138 mm/kasan/report.c:634
__asan_report_load4_noabort+0x20/0x2c mm/kasan/report_generic.c:380
isofs_fh_to_parent+0x1b8/0x210 fs/isofs/export.c:183
exportfs_decode_fh_raw+0x2dc/0x608 fs/exportfs/expfs.c:523
do_handle_to_path+0xa0/0x198 fs/fhandle.c:257
handle_to_path fs/fhandle.c:385 [inline]
do_handle_open+0x8cc/0xb8c fs/fhandle.c:403
__do_sys_open_by_handle_at fs/fhandle.c:443 [inline]
__se_sys_open_by_handle_at fs/fhandle.c:434 [inline]
__arm64_sys_open_by_handle_at+0x80/0x94 fs/fhandle.c:434
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Allocated by task 6466:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x40/0x78 mm/kasan/common.c:68
kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:562
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4294 [inline]
__kmalloc_noprof+0x32c/0x54c mm/slub.c:4306
kmalloc_noprof include/linux/slab.h:905 [inline]
handle_to_path fs/fhandle.c:357 [inline]
do_handle_open+0x5a4/0xb8c fs/fhandle.c:403
__do_sys_open_by_handle_at fs/fhandle.c:443 [inline]
__se_sys_open_by_handle_at fs/fhandle.c:434 [inline]
__arm64_sys_open_by_handle_at+0x80/0x94 fs/fhandle.c:434
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
来源: CVE Program / CVE List V5
CVSS Information
N/A
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isofs_fh_to_parent中使用了过小的fid，可能导致越界读取。
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-2025-37780 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2025-37780 补丁与修复 (8)
同批安全公告 · Linux · 2025-05-01 · 共 245 条
| CVE-2025-37750 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-37778 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2022-49770 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2022-49931 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37776 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37777 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37790 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49910 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49886 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-23159 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37749 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37765 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37779 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49920 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49919 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49921 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37752 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37756 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-37761 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-49804 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 245 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2025-37780
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