CVE-2024-57926

一、漏洞信息
 漏洞编号：[CVE-2024-57926](https://nvd.nist.gov/vuln/detail/CVE-2024-57926)
 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：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:drm/mediatek: Set private->all_drm_private[i]->drm to NULL if mtk_drm_bind returns errThe pointer need to be set to NULL, otherwise KASAN complains aboutuse-after-free. Because in mtk_drm_bind, all private s drm are setas follows.private->all_drm_private[i]->drm = drm;And drm will be released by drm_dev_put in case mtk_drm_kms_init returnsfailure. However, the shutdown path still accesses the previous allocatedmemory in drm_atomic_helper_shutdown.[   84.874820] watchdog: watchdog0: watchdog did not stop![   86.512054] ==================================================================[   86.513162] BUG: KASAN: use-after-free in drm_atomic_helper_shutdown+0x33c/0x378[   86.514258] Read of size 8 at addr ffff0000d46fc068 by task shutdown/1[   86.515213][   86.515455] CPU: 1 UID: 0 PID: 1 Comm: shutdown Not tainted 6.13.0-rc1-mtk+gfa1a78e5d24b-dirty #55[   86.516752] Hardware name: Unknown Product/Unknown Product, BIOS 2022.10 10/01/2022[   86.517960] Call trace:[   86.518333]  show_stack+0x20/0x38 (C)[   86.518891]  dump_stack_lvl+0x90/0xd0[   86.519443]  print_report+0xf8/0x5b0[   86.519985]  kasan_report+0xb4/0x100[   86.520526]  __asan_report_load8_noabort+0x20/0x30[   86.521240]  drm_atomic_helper_shutdown+0x33c/0x378[   86.521966]  mtk_drm_shutdown+0x54/0x80[   86.522546]  platform_shutdown+0x64/0x90[   86.523137]  device_shutdown+0x260/0x5b8[   86.523728]  kernel_restart+0x78/0xf0[   86.524282]  __do_sys_reboot+0x258/0x2f0[   86.524871]  __arm64_sys_reboot+0x90/0xd8[   86.525473]  invoke_syscall+0x74/0x268[   86.526041]  el0_svc_common.constprop.0+0xb0/0x240[   86.526751]  do_el0_svc+0x4c/0x70[   86.527251]  el0_svc+0x4c/0xc0[   86.527719]  el0t_64_sync_handler+0x144/0x168[   86.528367]  el0t_64_sync+0x198/0x1a0[   86.528920][   86.529157] The buggy address belongs to the physical page:[   86.529972] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff0000d46fd4d0 pfn:0x1146fc[   86.531319] flags: 0xbfffc0000000000(node=0|zone=2|lastcpupid=0xffff)[   86.532267] raw: 0bfffc0000000000 0000000000000000 dead000000000122 0000000000000000[   86.533390] raw: ffff0000d46fd4d0 0000000000000000 00000000ffffffff 0000000000000000[   86.534511] page dumped because: kasan: bad access detected[   86.535323][   86.535559] Memory state around the buggy address:[   86.536265]  ffff0000d46fbf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff[   86.537314]  ffff0000d46fbf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff[   86.538363] >ffff0000d46fc000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff[   86.544733]                                                           ^[   86.551057]  ffff0000d46fc080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff[   86.557510]  ffff0000d46fc100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff[   86.563928] ==================================================================[   86.571093] Disabling lock debugging due to kernel taint[   86.577642] Unable to handle kernel paging request at virtual address e0e9c0920000000b[   86.581834] KASAN: maybe wild-memory-access in range [0x0752049000000058-0x075204900000005f]...
 漏洞公开时间：2025-01-19 20:15:26
 漏洞创建时间：2025-01-19 21:35:55
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-57926
<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/078b2ff7da200b7532398e668eef723ad40fb516 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/36684e9d88a2e2401ae26715a2e217cb4295cea7 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/7083b93e9755d60f0c2bcaa9d064308108280534 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-57926 | https://bugzilla.suse.com/show_bug.cgi?id=1236082 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-57926 | https://bugzilla.suse.com/show_bug.cgi?id=1236082 |
| suse_bugzilla | https://git.kernel.org/stable/c/078b2ff7da200b7532398e668eef723ad40fb516 | https://bugzilla.suse.com/show_bug.cgi?id=1236082 |
| suse_bugzilla | https://git.kernel.org/stable/c/36684e9d88a2e2401ae26715a2e217cb4295cea7 | https://bugzilla.suse.com/show_bug.cgi?id=1236082 |
| suse_bugzilla | https://git.kernel.org/stable/c/7083b93e9755d60f0c2bcaa9d064308108280534 | https://bugzilla.suse.com/show_bug.cgi?id=1236082 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-57926.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1236082 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2338856 | https://bugzilla.suse.com/show_bug.cgi?id=1236082 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2025011944-CVE-2024-57926-023f@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2338856 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-57926 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2024-57926 |
| mageia |  | http://advisories.mageia.org/MGASA-2025-0030.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/078b2ff7da200b7532398e668eef723ad40fb516 |  | nvd |
|  |  | https://git.kernel.org/stable/c/36684e9d88a2e2401ae26715a2e217cb4295cea7 |  | nvd |
|  |  | https://git.kernel.org/stable/c/7083b93e9755d60f0c2bcaa9d064308108280534 |  | nvd |
| linux_kernel | 6.6.72 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7083b93e9755d60f0c2bcaa9d064308108280534Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1ef7ed48356cd5f9af2b7671956991b658d8c2ba | linuxkernelcves |
| linux_kernel | 6.12.10 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=078b2ff7da200b7532398e668eef723ad40fb516Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1ef7ed48356cd5f9af2b7671956991b658d8c2ba | linuxkernelcves |
| linux_kernel | 6.13-rc7 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=36684e9d88a2e2401ae26715a2e217cb4295cea7Please | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1ef7ed48356cd5f9af2b7671956991b658d8c2ba | 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:drm/mediatek: Set private-&gt;all_drm_private[i]-&gt;drm to NULL if mtk_drm_bind returns errThe pointer need to be set to NULL, otherwise KASAN complains aboutuse-after-free. Because in mtk_drm_bind, all private&#39;s drm are setas follows.private-&gt;all_drm_private[i]-&gt;drm = drm;And drm will be released by drm_dev_put in case mtk_drm_kms_init returnsfailure. However, the shutdown path still accesses the previous allocatedmemory in drm_atomic_helper_shutdown.[   84.874820] watchdog: watchdog0: watchdog did not stop![   86.512054] ==================================================================[   86.513162] BUG: KASAN: use-after-free in drm_atomic_helper_shutdown+0x33c/0x378[   86.514258] Read of size 8 at addr ffff0000d46fc068 by task shutdown/1[   86.515213][   86.515455] CPU: 1 UID: 0 PID: 1 Comm: shutdown Not tainted 6.13.0-rc1-mtk+gfa1a78e5d24b-dirty #55[   86.516752] Hardware name: Unknown Product/Unknown Product, BIOS 2022.10 10/01/2022[   86.517960] Call trace:[   86.518333]  show_stack+0x20/0x38 (C)[   86.518891]  dump_stack_lvl+0x90/0xd0[   86.519443]  print_report+0xf8/0x5b0[   86.519985]  kasan_report+0xb4/0x100[   86.520526]  __asan_report_load8_noabort+0x20/0x30[   86.521240]  drm_atomic_helper_shutdown+0x33c/0x378[   86.521966]  mtk_drm_shutdown+0x54/0x80[   86.522546]  platform_shutdown+0x64/0x90[   86.523137]  device_shutdown+0x260/0x5b8[   86.523728]  kernel_restart+0x78/0xf0[   86.524282]  __do_sys_reboot+0x258/0x2f0[   86.524871]  __arm64_sys_reboot+0x90/0xd8[   86.525473]  invoke_syscall+0x74/0x268[   86.526041]  el0_svc_common.constprop.0+0xb0/0x240[   86.526751]  do_el0_svc+0x4c/0x70[   86.527251]  el0_svc+0x4c/0xc0[   86.527719]  el0t_64_sync_handler+0x144/0x168[   86.528367]  el0t_64_sync+0x198/0x1a0[   86.528920][   86.529157] The buggy address belongs to the physical page:[   86.529972] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff0000d46fd4d0 pfn:0x1146fc[   86.531319] flags: 0xbfffc0000000000(node=0|zone=2|lastcpupid=0xffff)[   86.532267] raw: 0bfffc0000000000 0000000000000000 dead000000000122 0000000000000000[   86.533390] raw: ffff0000d46fd4d0 0000000000000000 00000000ffffffff 0000000000000000[   86.534511] page dumped because: kasan: bad access detected[   86.535323][   86.535559] Memory state around the buggy address:[   86.536265]  ffff0000d46fbf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff[   86.537314]  ffff0000d46fbf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff[   86.538363] &gt;ffff0000d46fc000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff[   86.544733]                                                           ^[   86.551057]  ffff0000d46fc080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff[   86.557510]  ffff0000d46fc100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff[   86.563928] ==================================================================[   86.571093] Disabling lock debugging due to kernel taint[   86.577642] Unable to handle kernel paging request at virtual address e0e9c0920000000b[   86.581834] KASAN: maybe wild-memory-access in range [0x0752049000000058-0x075204900000005f]...The Linux kernel CVE team has assigned CVE-2024-57926 to this issue.
 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-24.03-LTS(6.6.0):受影响
2.openEuler-24.03-LTS-SP1(6.6.0):受影响
3.master(6.6.0):不受影响
4.openEuler-20.03-LTS-SP4(4.19.90):不受影响
5.openEuler-22.03-LTS-SP3(5.10.0):不受影响
6.openEuler-22.03-LTS-SP4(5.10.0):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.master(6.6.0):否
2.openEuler-20.03-LTS-SP4(4.19.90):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.openEuler-22.03-LTS-SP4(5.10.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-24.03-LTS-SP1(6.6.0):否

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

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1097

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