CVE-2024-44942

一、漏洞信息
 漏洞编号：[CVE-2024-44942](https://nvd.nist.gov/vuln/detail/CVE-2024-44942)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
 CVSS V3.0分值：
  BaseScore：7.8 High
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:f2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during GCsyzbot reports a f2fs bug as below:------------[ cut here ]------------kernel BUG at fs/f2fs/inline.c:258!CPU: 1 PID: 34 Comm: kworker/u8:2 Not tainted 6.9.0-rc6-syzkaller-00012-g9e4bc4bcae01 #0RIP: 0010:f2fs_write_inline_data+0x781/0x790 fs/f2fs/inline.c:258Call Trace: f2fs_write_single_data_page+0xb65/0x1d60 fs/f2fs/data.c:2834 f2fs_write_cache_pages fs/f2fs/data.c:3133 [inline] __f2fs_write_data_pages fs/f2fs/data.c:3288 [inline] f2fs_write_data_pages+0x1efe/0x3a90 fs/f2fs/data.c:3315 do_writepages+0x35b/0x870 mm/page-writeback.c:2612 __writeback_single_inode+0x165/0x10b0 fs/fs-writeback.c:1650 writeback_sb_inodes+0x905/0x1260 fs/fs-writeback.c:1941 wb_writeback+0x457/0xce0 fs/fs-writeback.c:2117 wb_do_writeback fs/fs-writeback.c:2264 [inline] wb_workfn+0x410/0x1090 fs/fs-writeback.c:2304 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3335 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416 kthread+0x2f2/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244The root cause is: inline_data inode can be fuzzed, so that there maybe valid blkaddr in its direct node, once f2fs triggers background GCto migrate the block, it will hit f2fs_bug_on() during dirty pagewriteback.Let s add sanity check on F2FS_INLINE_DATA flag in inode during GC,so that, it can forbid migrating inline_data inode s data block forfixing.
 漏洞公开时间：2024-08-26 20:15:06
 漏洞创建时间：2024-08-26 20:41:25
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-44942
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/26c07775fb5dc74351d1c3a2bc3cdf609b03e49f |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/ae00e6536a2dd54b64b39e9a39548870cf835745 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/fc01008c92f40015aeeced94750855a7111b6929 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-44942 | https://bugzilla.suse.com/show_bug.cgi?id=1229829 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-44942 | https://bugzilla.suse.com/show_bug.cgi?id=1229829 |
| suse_bugzilla | https://git.kernel.org/stable/c/26c07775fb5dc74351d1c3a2bc3cdf609b03e49f | https://bugzilla.suse.com/show_bug.cgi?id=1229829 |
| suse_bugzilla | https://git.kernel.org/stable/c/ae00e6536a2dd54b64b39e9a39548870cf835745 | https://bugzilla.suse.com/show_bug.cgi?id=1229829 |
| suse_bugzilla | https://git.kernel.org/stable/c/fc01008c92f40015aeeced94750855a7111b6929 | https://bugzilla.suse.com/show_bug.cgi?id=1229829 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-44942.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1229829 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024082620-CVE-2024-44942-651a@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2307901 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2024-44942 | https://ubuntu.com/security/CVE-2024-44942 |
| ubuntu | https://git.kernel.org/linus/fc01008c92f40015aeeced94750855a7111b6929 (6.11-rc1) | https://ubuntu.com/security/CVE-2024-44942 |
| ubuntu | https://git.kernel.org/stable/c/ae00e6536a2dd54b64b39e9a39548870cf835745 | https://ubuntu.com/security/CVE-2024-44942 |
| ubuntu | https://git.kernel.org/stable/c/26c07775fb5dc74351d1c3a2bc3cdf609b03e49f | https://ubuntu.com/security/CVE-2024-44942 |
| ubuntu | https://git.kernel.org/stable/c/fc01008c92f40015aeeced94750855a7111b6929 | https://ubuntu.com/security/CVE-2024-44942 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2024-44942 | https://ubuntu.com/security/CVE-2024-44942 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2024-44942 | https://ubuntu.com/security/CVE-2024-44942 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2024-44942 | https://ubuntu.com/security/CVE-2024-44942 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-44942 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2024-44942 |
| cve_search |  | https://git.kernel.org/stable/c/ae00e6536a2dd54b64b39e9a39548870cf835745 |
| cve_search |  | https://git.kernel.org/stable/c/26c07775fb5dc74351d1c3a2bc3cdf609b03e49f |
| cve_search |  | https://git.kernel.org/stable/c/fc01008c92f40015aeeced94750855a7111b6929 |
| mageia |  | http://advisories.mageia.org/MGASA-2024-0309.html |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/stable/c/26c07775fb5dc74351d1c3a2bc3cdf609b03e49f |  | nvd |
|  |  | https://git.kernel.org/stable/c/ae00e6536a2dd54b64b39e9a39548870cf835745 |  | nvd |
|  |  | https://git.kernel.org/stable/c/fc01008c92f40015aeeced94750855a7111b6929 |  | nvd |
| linux |  | https://git.kernel.org/linus/fc01008c92f40015aeeced94750855a7111b6929 | https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | ubuntu |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  In the Linux kernel, the following vulnerability has been resolved:f2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during GCsyzbot reports a f2fs bug as below:------------[ cut here ]------------kernel BUG at fs/f2fs/inline.c:258!CPU: 1 PID: 34 Comm: kworker/u8:2 Not tainted 6.9.0-rc6-syzkaller-00012-g9e4bc4bcae01 #0RIP: 0010:f2fs_write_inline_data+0x781/0x790 fs/f2fs/inline.c:258Call Trace: f2fs_write_single_data_page+0xb65/0x1d60 fs/f2fs/data.c:2834 f2fs_write_cache_pages fs/f2fs/data.c:3133 [inline] __f2fs_write_data_pages fs/f2fs/data.c:3288 [inline] f2fs_write_data_pages+0x1efe/0x3a90 fs/f2fs/data.c:3315 do_writepages+0x35b/0x870 mm/page-writeback.c:2612 __writeback_single_inode+0x165/0x10b0 fs/fs-writeback.c:1650 writeback_sb_inodes+0x905/0x1260 fs/fs-writeback.c:1941 wb_writeback+0x457/0xce0 fs/fs-writeback.c:2117 wb_do_writeback fs/fs-writeback.c:2264 [inline] wb_workfn+0x410/0x1090 fs/fs-writeback.c:2304 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3335 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416 kthread+0x2f2/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244The root cause is: inline_data inode can be fuzzed, so that there maybe valid blkaddr in its direct node, once f2fs triggers background GCto migrate the block, it will hit f2fs_bug_on() during dirty pagewriteback.Let s add sanity check on F2FS_INLINE_DATA flag in inode during GC,so that, it can forbid migrating inline_data inode s data block forfixing.
 openEuler评分：
  7.8
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP4(4.19.90):受影响
2.openEuler-22.03-LTS-SP3(5.10.0):受影响
3.openEuler-22.03-LTS-SP4(5.10.0):受影响
4.openEuler-24.03-LTS(6.6.0):受影响
5.master(6.6.0):不受影响
6.openEuler-24.03-LTS-Next(6.6.0):不受影响
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP1(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.6.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(5.10.0):否
8.openEuler-24.03-LTS-SP1(6.6.0):否

原因说明：
  1.openEuler-22.03-LTS-SP3(5.10.0):正常修复
2.openEuler-22.03-LTS-SP4(5.10.0):正常修复
3.openEuler-24.03-LTS(6.6.0):正常修复
4.openEuler-20.03-LTS-SP4(4.19.90):不修复-超出修复范围
5.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
6.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响-漏洞代码不存在

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