CVE-2024-46733— 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，该漏洞源于资源泄漏。
影响版本矩阵 10
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 7dbeaad0af7d0a1a2a8e41d04e90964368ddfcc5< 159f0f61b283ea71e827dd0c18c5dce197de1fa2 |
affected |
7dbeaad0af7d0a1a2a8e41d04e90964368ddfcc5< 84464db2ec2a55b9313d5f264da196a37ec80994 |
affected | ||
7dbeaad0af7d0a1a2a8e41d04e90964368ddfcc5< e42ef22bc10f0309c0c65d8d6ca8b4127a674b7f |
affected | ||
7dbeaad0af7d0a1a2a8e41d04e90964368ddfcc5< 30479f31d44d47ed00ae0c7453d9b253537005b2 |
affected | ||
5.9 |
affected | ||
< 5.9 |
unaffected | ||
6.1.135≤ 6.1.* |
unaffected | ||
6.6.88≤ 6.6.* |
unaffected | ||
| … +2 条更多 | |||
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一、 漏洞 CVE-2024-46733 基础信息
漏洞信息
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Vulnerability Title
btrfs: fix qgroup reserve leaks in cow_file_range
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix qgroup reserve leaks in cow_file_range
In the buffered write path, the dirty page owns the qgroup reserve until
it creates an ordered_extent.
Therefore, any errors that occur before the ordered_extent is created
must free that reservation, or else the space is leaked. The fstest
generic/475 exercises various IO error paths, and is able to trigger
errors in cow_file_range where we fail to get to allocating the ordered
extent. Note that because we *do* clear delalloc, we are likely to
remove the inode from the delalloc list, so the inodes/pages to not have
invalidate/launder called on them in the commit abort path.
This results in failures at the unmount stage of the test that look like:
BTRFS: error (device dm-8 state EA) in cleanup_transaction:2018: errno=-5 IO failure
BTRFS: error (device dm-8 state EA) in btrfs_replace_file_extents:2416: errno=-5 IO failure
BTRFS warning (device dm-8 state EA): qgroup 0/5 has unreleased space, type 0 rsv 28672
------------[ cut here ]------------
WARNING: CPU: 3 PID: 22588 at fs/btrfs/disk-io.c:4333 close_ctree+0x222/0x4d0 [btrfs]
Modules linked in: btrfs blake2b_generic libcrc32c xor zstd_compress raid6_pq
CPU: 3 PID: 22588 Comm: umount Kdump: loaded Tainted: G W 6.10.0-rc7-gab56fde445b8 #21
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014
RIP: 0010:close_ctree+0x222/0x4d0 [btrfs]
RSP: 0018:ffffb4465283be00 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffffa1a1818e1000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffb4465283bbe0 RDI: ffffa1a19374fcb8
RBP: ffffa1a1818e13c0 R08: 0000000100028b16 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000003 R12: ffffa1a18ad7972c
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f9168312b80(0000) GS:ffffa1a4afcc0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91683c9140 CR3: 000000010acaa000 CR4: 00000000000006f0
Call Trace:
<TASK>
? close_ctree+0x222/0x4d0 [btrfs]
? __warn.cold+0x8e/0xea
? close_ctree+0x222/0x4d0 [btrfs]
? report_bug+0xff/0x140
? handle_bug+0x3b/0x70
? exc_invalid_op+0x17/0x70
? asm_exc_invalid_op+0x1a/0x20
? close_ctree+0x222/0x4d0 [btrfs]
generic_shutdown_super+0x70/0x160
kill_anon_super+0x11/0x40
btrfs_kill_super+0x11/0x20 [btrfs]
deactivate_locked_super+0x2e/0xa0
cleanup_mnt+0xb5/0x150
task_work_run+0x57/0x80
syscall_exit_to_user_mode+0x121/0x130
do_syscall_64+0xab/0x1a0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f916847a887
---[ end trace 0000000000000000 ]---
BTRFS error (device dm-8 state EA): qgroup reserved space leaked
Cases 2 and 3 in the out_reserve path both pertain to this type of leak
and must free the reserved qgroup data. Because it is already an error
path, I opted not to handle the possible errors in
btrfs_free_qgroup_data.
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，该漏洞源于资源泄漏。
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-2024-46733 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-46733 补丁与修复 (4)
同批安全公告 · Linux · 2024-09-18 · 共 85 条
| CVE-2024-46717 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-46736 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-46796 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-46755 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46780 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46788 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46734 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46787 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46738 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46741 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46746 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46781 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46750 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46740 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46751 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46754 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46777 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46762 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46765 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46771 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 85 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-46733
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