CVE-2024-47709

一、漏洞信息
 漏洞编号：[CVE-2024-47709](https://nvd.nist.gov/vuln/detail/CVE-2024-47709)
 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：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:can: bcm: Clear bo->bcm_proc_read after remove_proc_entry().syzbot reported a warning in bcm_release(). [0]The blamed change fixed another warning that is triggered whenconnect() is issued again for a socket whose connect()ed device hasbeen unregistered.However, if the socket is just close()d without the 2nd connect(), theremaining bo->bcm_proc_read triggers unnecessary remove_proc_entry()in bcm_release().Let s clear bo->bcm_proc_read after remove_proc_entry() in bcm_notify().[0]name  4986 WARNING: CPU: 0 PID: 5234 at fs/proc/generic.c:711 remove_proc_entry+0x2e7/0x5d0 fs/proc/generic.c:711Modules linked in:CPU: 0 UID: 0 PID: 5234 Comm: syz-executor606 Not tainted 6.11.0-rc5-syzkaller-00178-g5517ae241919 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024RIP: 0010:remove_proc_entry+0x2e7/0x5d0 fs/proc/generic.c:711Code: ff eb 05 e8 cb 1e 5e ff 48 8b 5c 24 10 48 c7 c7 e0 f7 aa 8e e8 2a 38 8e 09 90 48 c7 c7 60 3a 1b 8c 48 89 de e8 da 42 20 ff 90 <0f> 0b 90 90 48 8b 44 24 18 48 c7 44 24 40 0e 36 e0 45 49 c7 04 07RSP: 0018:ffffc9000345fa20 EFLAGS: 00010246RAX: 2a2d0aee2eb64600 RBX: ffff888032f1f548 RCX: ffff888029431e00RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000RBP: ffffc9000345fb08 R08: ffffffff8155b2f2 R09: 1ffff1101710519aR10: dffffc0000000000 R11: ffffed101710519b R12: ffff888011d38640R13: 0000000000000004 R14: 0000000000000000 R15: dffffc0000000000FS:  0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 00007fcfb52722f0 CR3: 000000000e734000 CR4: 00000000003506f0DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400Call Trace: <TASK> bcm_release+0x250/0x880 net/can/bcm.c:1578 __sock_release net/socket.c:659 [inline] sock_close+0xbc/0x240 net/socket.c:1421 __fput+0x24a/0x8a0 fs/file_table.c:422 task_work_run+0x24f/0x310 kernel/task_work.c:228 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0xa2f/0x27f0 kernel/exit.c:882 do_group_exit+0x207/0x2c0 kernel/exit.c:1031 __do_sys_exit_group kernel/exit.c:1042 [inline] __se_sys_exit_group kernel/exit.c:1040 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040 x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7fRIP: 0033:0x7fcfb51ee969Code: Unable to access opcode bytes at 0x7fcfb51ee93f.RSP: 002b:00007ffce0109ca8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fcfb51ee969RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001RBP: 00007fcfb526f3b0 R08: ffffffffffffffb8 R09: 0000555500000000R10: 0000555500000000 R11: 0000000000000246 R12: 00007fcfb526f3b0R13: 0000000000000000 R14: 00007fcfb5271ee0 R15: 00007fcfb51bf160 </TASK>
 漏洞公开时间：2024-10-21 20:15:07
 漏洞创建时间：2024-10-21 20:42:12
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-47709
<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/5cc00913c1fdcab861c4e65fa20d1f1e1bbbf977 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/770b463264426cc3c167b1d44efa85f6a526ce5b |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/7a145d6ec2124bdb94bd6fc436b342ff6ddf2b70 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/94b0818fa63555a65f6ba107080659ea6bcca63e |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/9550baada4c8ef8cebefccc746384842820b4dff |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/a833da8eec20b51af39643faa7067b25c8b20f3e |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/b02ed2f01240b226570b4a19b5041d61f5125784 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/c3d941cc734e0c8dc486c062926d5249070af5e4 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/f5059fae5ed518fc56494ce5bdd4f5360de4b3bc |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-47709 | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-47709.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| suse_bugzilla | https://git.kernel.org/stable/c/5cc00913c1fdcab861c4e65fa20d1f1e1bbbf977 | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| suse_bugzilla | https://git.kernel.org/stable/c/9550baada4c8ef8cebefccc746384842820b4dff | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| suse_bugzilla | https://git.kernel.org/stable/c/7a145d6ec2124bdb94bd6fc436b342ff6ddf2b70 | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| suse_bugzilla | https://git.kernel.org/stable/c/c3d941cc734e0c8dc486c062926d5249070af5e4 | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| suse_bugzilla | https://git.kernel.org/stable/c/770b463264426cc3c167b1d44efa85f6a526ce5b | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| suse_bugzilla | https://git.kernel.org/stable/c/b02ed2f01240b226570b4a19b5041d61f5125784 | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| suse_bugzilla | https://git.kernel.org/stable/c/94b0818fa63555a65f6ba107080659ea6bcca63e | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-47709 | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2320231 | https://bugzilla.suse.com/show_bug.cgi?id=1232048 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024102117-CVE-2024-47709-8e66@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2320231 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-47709 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2024-47709 |
| mageia |  | http://advisories.mageia.org/MGASA-2024-0345.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/5cc00913c1fdcab861c4e65fa20d1f1e1bbbf977 |  | nvd |
|  |  | https://git.kernel.org/stable/c/770b463264426cc3c167b1d44efa85f6a526ce5b |  | nvd |
|  |  | https://git.kernel.org/stable/c/7a145d6ec2124bdb94bd6fc436b342ff6ddf2b70 |  | nvd |
|  |  | https://git.kernel.org/stable/c/94b0818fa63555a65f6ba107080659ea6bcca63e |  | nvd |
|  |  | https://git.kernel.org/stable/c/9550baada4c8ef8cebefccc746384842820b4dff |  | nvd |
|  |  | https://git.kernel.org/stable/c/b02ed2f01240b226570b4a19b5041d61f5125784 |  | nvd |
|  |  | https://git.kernel.org/stable/c/c3d941cc734e0c8dc486c062926d5249070af5e4 |  | nvd |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  Reserved.
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/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.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-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.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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