CVE-2024-53052

一、漏洞信息
 漏洞编号：[CVE-2024-53052](https://nvd.nist.gov/vuln/detail/CVE-2024-53052)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.1.8,6.4.0,6.6.0
 CVSS V3.0分值：
  BaseScore：4.4 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:io_uring/rw: fix missing NOWAIT check for O_DIRECT start writeWhen io_uring starts a write, it ll call kiocb_start_write() to bump thesuper block rwsem, preventing any freezes from happening while thatwrite is in-flight. The freeze side will grab that rwsem for writing,excluding any new writers from happening and waiting for existing writesto finish. But io_uring unconditionally uses kiocb_start_write(), whichwill block if someone is currently attempting to freeze the mount point.This causes a deadlock where freeze is waiting for previous writes tocomplete, but the previous writes cannot complete, as the task that issupposed to complete them is blocked waiting on starting a new write.This results in the following stuck trace showing that dependency withthe write blocked starting a new write:task:fio             state:D stack:0     pid:886   tgid:886   ppid:876Call trace: __switch_to+0x1d8/0x348 __schedule+0x8e8/0x2248 schedule+0x110/0x3f0 percpu_rwsem_wait+0x1e8/0x3f8 __percpu_down_read+0xe8/0x500 io_write+0xbb8/0xff8 io_issue_sqe+0x10c/0x1020 io_submit_sqes+0x614/0x2110 __arm64_sys_io_uring_enter+0x524/0x1038 invoke_syscall+0x74/0x268 el0_svc_common.constprop.0+0x160/0x238 do_el0_svc+0x44/0x60 el0_svc+0x44/0xb0 el0t_64_sync_handler+0x118/0x128 el0t_64_sync+0x168/0x170INFO: task fsfreeze:7364 blocked for more than 15 seconds.      Not tainted 6.12.0-rc5-00063-g76aaf945701c #7963with the attempting freezer stuck trying to grab the rwsem:task:fsfreeze        state:D stack:0     pid:7364  tgid:7364  ppid:995Call trace: __switch_to+0x1d8/0x348 __schedule+0x8e8/0x2248 schedule+0x110/0x3f0 percpu_down_write+0x2b0/0x680 freeze_super+0x248/0x8a8 do_vfs_ioctl+0x149c/0x1b18 __arm64_sys_ioctl+0xd0/0x1a0 invoke_syscall+0x74/0x268 el0_svc_common.constprop.0+0x160/0x238 do_el0_svc+0x44/0x60 el0_svc+0x44/0xb0 el0t_64_sync_handler+0x118/0x128 el0t_64_sync+0x168/0x170Fix this by having the io_uring side honor IOCB_NOWAIT, and only attempt ablocking grab of the super block rwsem if it isn t set. For normal issuewhere IOCB_NOWAIT would always be set, this returns -EAGAIN which willhave io_uring core issue a blocking attempt of the write. That will inturn also get completions run, ensuring forward progress.Since freezing requires CAP_SYS_ADMIN in the first place, this isn tsomething that can be triggered by a regular user.
 漏洞公开时间：2024-11-20 02:15:25
 漏洞创建时间：2024-11-20 02:40:11
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-53052
<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/003d2996964c03dfd34860500428f4cdf1f5879e |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/1d60d74e852647255bd8e76f5a22dc42531e4389 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/26b8c48f369b7591f5679e0b90612f4862a32929 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/485d9232112b17f389b29497ff41b97b3189546b |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/4e24041ba86d50aaa4c792ae2c88ed01b3d96243 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/9e8debb8e51354b201db494689198078ec2c1e75 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-53052 | https://bugzilla.suse.com/show_bug.cgi?id=1233548 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-53052.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1233548 |
| suse_bugzilla | https://git.kernel.org/stable/c/485d9232112b17f389b29497ff41b97b3189546b | https://bugzilla.suse.com/show_bug.cgi?id=1233548 |
| suse_bugzilla | https://git.kernel.org/stable/c/4e24041ba86d50aaa4c792ae2c88ed01b3d96243 | https://bugzilla.suse.com/show_bug.cgi?id=1233548 |
| suse_bugzilla | https://git.kernel.org/stable/c/9e8debb8e51354b201db494689198078ec2c1e75 | https://bugzilla.suse.com/show_bug.cgi?id=1233548 |
| suse_bugzilla | https://git.kernel.org/stable/c/003d2996964c03dfd34860500428f4cdf1f5879e | https://bugzilla.suse.com/show_bug.cgi?id=1233548 |
| suse_bugzilla | https://git.kernel.org/stable/c/26b8c48f369b7591f5679e0b90612f4862a32929 | https://bugzilla.suse.com/show_bug.cgi?id=1233548 |
| suse_bugzilla | https://git.kernel.org/stable/c/1d60d74e852647255bd8e76f5a22dc42531e4389 | https://bugzilla.suse.com/show_bug.cgi?id=1233548 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-53052 | https://bugzilla.suse.com/show_bug.cgi?id=1233548 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024111927-CVE-2024-53052-3bd9@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2327374 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-53052 |

</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/003d2996964c03dfd34860500428f4cdf1f5879e |  | nvd |
|  |  | https://git.kernel.org/stable/c/1d60d74e852647255bd8e76f5a22dc42531e4389 |  | nvd |
|  |  | https://git.kernel.org/stable/c/26b8c48f369b7591f5679e0b90612f4862a32929 |  | nvd |
|  |  | https://git.kernel.org/stable/c/485d9232112b17f389b29497ff41b97b3189546b |  | nvd |
|  |  | https://git.kernel.org/stable/c/4e24041ba86d50aaa4c792ae2c88ed01b3d96243 |  | nvd |
|  |  | https://git.kernel.org/stable/c/9e8debb8e51354b201db494689198078ec2c1e75 |  | nvd |
| linux_kernel | 5.10.230 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=485d9232112bFixed |  | linuxkernelcves |
| linux_kernel | 5.15.172 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4e24041ba86dFixed |  | linuxkernelcves |
| linux_kernel | 6.1.116 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9e8debb8e513Fixed |  | linuxkernelcves |
| linux_kernel | 6.6.60 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=003d2996964cFixed |  | linuxkernelcves |
| linux_kernel | 6.11.7 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=26b8c48f369bFixed |  | linuxkernelcves |
| linux_kernel | 6.12 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1d60d74e8526Please |  | linuxkernelcves |

</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:io_uring/rw: fix missing NOWAIT check for O_DIRECT start writeWhen io_uring starts a write, it ll call kiocb_start_write() to bump thesuper block rwsem, preventing any freezes from happening while thatwrite is in-flight. The freeze side will grab that rwsem for writing,excluding any new writers from happening and waiting for existing writesto finish. But io_uring unconditionally uses kiocb_start_write(), whichwill block if someone is currently attempting to freeze the mount point.This causes a deadlock where freeze is waiting for previous writes tocomplete, but the previous writes cannot complete, as the task that issupposed to complete them is blocked waiting on starting a new write.This results in the following stuck trace showing that dependency withthe write blocked starting a new write:task:fio             state:D stack:0     pid:886   tgid:886   ppid:876Call trace: __switch_to+0x1d8/0x348 __schedule+0x8e8/0x2248 schedule+0x110/0x3f0 percpu_rwsem_wait+0x1e8/0x3f8 __percpu_down_read+0xe8/0x500 io_write+0xbb8/0xff8 io_issue_sqe+0x10c/0x1020 io_submit_sqes+0x614/0x2110 __arm64_sys_io_uring_enter+0x524/0x1038 invoke_syscall+0x74/0x268 el0_svc_common.constprop.0+0x160/0x238 do_el0_svc+0x44/0x60 el0_svc+0x44/0xb0 el0t_64_sync_handler+0x118/0x128 el0t_64_sync+0x168/0x170INFO: task fsfreeze:7364 blocked for more than 15 seconds.      Not tainted 6.12.0-rc5-00063-g76aaf945701c #7963with the attempting freezer stuck trying to grab the rwsem:task:fsfreeze        state:D stack:0     pid:7364  tgid:7364  ppid:995Call trace: __switch_to+0x1d8/0x348 __schedule+0x8e8/0x2248 schedule+0x110/0x3f0 percpu_down_write+0x2b0/0x680 freeze_super+0x248/0x8a8 do_vfs_ioctl+0x149c/0x1b18 __arm64_sys_ioctl+0xd0/0x1a0 invoke_syscall+0x74/0x268 el0_svc_common.constprop.0+0x160/0x238 do_el0_svc+0x44/0x60 el0_svc+0x44/0xb0 el0t_64_sync_handler+0x118/0x128 el0t_64_sync+0x168/0x170Fix this by having the io_uring side honor IOCB_NOWAIT, and only attempt ablocking grab of the super block rwsem if it isn t set. For normal issuewhere IOCB_NOWAIT would always be set, this returns -EAGAIN which willhave io_uring core issue a blocking attempt of the write. That will inturn also get completions run, ensuring forward progress.Since freezing requires CAP_SYS_ADMIN in the first place, this isn tsomething that can be triggered by a regular user.
 openEuler评分：
  4.4
 Vector：CVSS：3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/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.openEuler-24.03-LTS-SP1(6.6.0):受影响
6.master(6.6.0):不受影响
7.openEuler-24.03-LTS-Next(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-20.03-LTS-SP4(4.19.90):正常修复
2.openEuler-22.03-LTS-SP3(5.10.0):正常修复
3.openEuler-22.03-LTS-SP4(5.10.0):正常修复
4.openEuler-24.03-LTS(6.6.0):正常修复
5.openEuler-24.03-LTS-SP1(6.6.0):正常修复
6.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2520

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