CVE-2024-56614

一、漏洞信息
 漏洞编号：[CVE-2024-56614](https://nvd.nist.gov/vuln/detail/CVE-2024-56614)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.4.0,6.6.0
 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:xsk: fix OOB map writes when deleting elementsJordy says: In the xsk_map_delete_elem function an unsigned integer(map->max_entries) is compared with a user-controlled signed integer(k). Due to implicit type conversion, a large unsigned value formap->max_entries can bypass the intended bounds check:	if (k >= map->max_entries)		return -EINVAL;This allows k to hold a negative value (between -2147483648 and -2),which is then used as an array index in m->xsk_map[k], which resultsin an out-of-bounds access.	spin_lock_bh(&m->lock);	map_entry = &m->xsk_map[k]; // Out-of-bounds map_entry	old_xs = unrcu_pointer(xchg(map_entry, NULL));  // Oob write	if (old_xs)		xsk_map_sock_delete(old_xs, map_entry);	spin_unlock_bh(&m->lock);The xchg operation can then be used to cause an out-of-bounds write.Moreover, the invalid map_entry passed to xsk_map_sock_delete can leadto further memory corruption. It indeed results in following splat:[76612.897343] BUG: unable to handle page fault for address: ffffc8fc2e461108[76612.904330] #PF: supervisor write access in kernel mode[76612.909639] #PF: error_code(0x0002) - not-present page[76612.914855] PGD 0 P4D 0[76612.917431] Oops: Oops: 0002 [#1] PREEMPT SMP[76612.921859] CPU: 11 UID: 0 PID: 10318 Comm: a.out Not tainted 6.12.0-rc1+ #470[76612.929189] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019[76612.939781] RIP: 0010:xsk_map_delete_elem+0x2d/0x60[76612.944738] Code: 00 00 41 54 55 53 48 63 2e 3b 6f 24 73 38 4c 8d a7 f8 00 00 00 48 89 fb 4c 89 e7 e8 2d bf 05 00 48 8d b4 eb 00 01 00 00 31 ff <48> 87 3e 48 85 ff 74 05 e8 16 ff ff ff 4c 89 e7 e8 3e bc 05 00 31[76612.963774] RSP: 0018:ffffc9002e407df8 EFLAGS: 00010246[76612.969079] RAX: 0000000000000000 RBX: ffffc9002e461000 RCX: 0000000000000000[76612.976323] RDX: 0000000000000001 RSI: ffffc8fc2e461108 RDI: 0000000000000000[76612.983569] RBP: ffffffff80000001 R08: 0000000000000000 R09: 0000000000000007[76612.990812] R10: ffffc9002e407e18 R11: ffff888108a38858 R12: ffffc9002e4610f8[76612.998060] R13: ffff888108a38858 R14: 00007ffd1ae0ac78 R15: ffffc9002e4610c0[76613.005303] FS:  00007f80b6f59740(0000) GS:ffff8897e0ec0000(0000) knlGS:0000000000000000[76613.013517] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033[76613.019349] CR2: ffffc8fc2e461108 CR3: 000000011e3ef001 CR4: 00000000007726f0[76613.026595] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000[76613.033841] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400[76613.041086] PKRU: 55555554[76613.043842] Call Trace:[76613.046331]  <TASK>[76613.048468]  ? __die+0x20/0x60[76613.051581]  ? page_fault_oops+0x15a/0x450[76613.055747]  ? search_extable+0x22/0x30[76613.059649]  ? search_bpf_extables+0x5f/0x80[76613.063988]  ? exc_page_fault+0xa9/0x140[76613.067975]  ? asm_exc_page_fault+0x22/0x30[76613.072229]  ? xsk_map_delete_elem+0x2d/0x60[76613.076573]  ? xsk_map_delete_elem+0x23/0x60[76613.080914]  __sys_bpf+0x19b7/0x23c0[76613.084555]  __x64_sys_bpf+0x1a/0x20[76613.088194]  do_syscall_64+0x37/0xb0[76613.091832]  entry_SYSCALL_64_after_hwframe+0x4b/0x53[76613.096962] RIP: 0033:0x7f80b6d1e88d[76613.100592] Code: 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 b5 0f 00 f7 d8 64 89 01 48[76613.119631] RSP: 002b:00007ffd1ae0ac68 EFLAGS: 00000206 ORIG_RAX: 0000000000000141[76613.131330] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f80b6d1e88d[76613.142632] RDX: 0000000000000098 RSI: 00007ffd1ae0ad20 RDI: 0000000000000003[76613.153967] RBP: 00007ffd1ae0adc0 R08: 0000000000000000 R09: 0000000000000000[76613.166030] R10: 00007f80b6f77040 R11: 0000000000000206 R12: 00007ffd1ae0aed8[76613.177130] R13: 000055ddf42ce1e9 R14: 000055ddf42d0d98 R15: 00---truncated---
 漏洞公开时间：2024-12-27 23:15:20
 漏洞创建时间：2024-12-28 00:04:01
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-56614
<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/32cd3db7de97c0c7a018756ce66244342fd583f0 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/4d03f705e9d7aabebc6bfa5810f8aab6d176cbb7 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/d486b5741d987d3e0e6be4ac22cafdf94e6d1a47 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/ed08c93d5a9801cc8f224a046411fd603c538d07 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/f8abd03f83d5fe81e76eb93e2c4373eb9f75fd8a |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-56614 | https://bugzilla.suse.com/show_bug.cgi?id=1235424 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-56614 | https://bugzilla.suse.com/show_bug.cgi?id=1235424 |
| suse_bugzilla | https://git.kernel.org/stable/c/32cd3db7de97c0c7a018756ce66244342fd583f0 | https://bugzilla.suse.com/show_bug.cgi?id=1235424 |
| suse_bugzilla | https://git.kernel.org/stable/c/4d03f705e9d7aabebc6bfa5810f8aab6d176cbb7 | https://bugzilla.suse.com/show_bug.cgi?id=1235424 |
| suse_bugzilla | https://git.kernel.org/stable/c/d486b5741d987d3e0e6be4ac22cafdf94e6d1a47 | https://bugzilla.suse.com/show_bug.cgi?id=1235424 |
| suse_bugzilla | https://git.kernel.org/stable/c/ed08c93d5a9801cc8f224a046411fd603c538d07 | https://bugzilla.suse.com/show_bug.cgi?id=1235424 |
| suse_bugzilla | https://git.kernel.org/stable/c/f8abd03f83d5fe81e76eb93e2c4373eb9f75fd8a | https://bugzilla.suse.com/show_bug.cgi?id=1235424 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-56614.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1235424 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2334573 | https://bugzilla.suse.com/show_bug.cgi?id=1235424 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024122707-CVE-2024-56614-17c4@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2334573 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-56614 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2024-56614 |
| mageia |  | http://advisories.mageia.org/MGASA-2025-0030.html |
| osv | https://git.kernel.org/stable/c/32cd3db7de97c0c7a018756ce66244342fd583f0 | https://osv.dev/vulnerability/CVE-2024-56614 |
| osv | https://git.kernel.org/stable/c/4d03f705e9d7aabebc6bfa5810f8aab6d176cbb7 | https://osv.dev/vulnerability/CVE-2024-56614 |
| osv | https://git.kernel.org/stable/c/d486b5741d987d3e0e6be4ac22cafdf94e6d1a47 | https://osv.dev/vulnerability/CVE-2024-56614 |
| osv | https://git.kernel.org/stable/c/ed08c93d5a9801cc8f224a046411fd603c538d07 | https://osv.dev/vulnerability/CVE-2024-56614 |
| osv | https://git.kernel.org/stable/c/f8abd03f83d5fe81e76eb93e2c4373eb9f75fd8a | https://osv.dev/vulnerability/CVE-2024-56614 |
| osv | https://security-tracker.debian.org/tracker/CVE-2024-56614 | https://osv.dev/vulnerability/CVE-2024-56614 |

</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/32cd3db7de97c0c7a018756ce66244342fd583f0 |  | nvd |
|  |  | https://git.kernel.org/stable/c/4d03f705e9d7aabebc6bfa5810f8aab6d176cbb7 |  | nvd |
|  |  | https://git.kernel.org/stable/c/d486b5741d987d3e0e6be4ac22cafdf94e6d1a47 |  | nvd |
|  |  | https://git.kernel.org/stable/c/ed08c93d5a9801cc8f224a046411fd603c538d07 |  | nvd |
|  |  | https://git.kernel.org/stable/c/f8abd03f83d5fe81e76eb93e2c4373eb9f75fd8a |  | nvd |
| linux_kernel | 5.15.174 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4d03f705e9d7aabebc6bfa5810f8aab6d176cbb7Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=fbfc504a24f53f7ebe128ab55cb5dba634f4ece8 | linuxkernelcves |
| linux_kernel | 6.1.120 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ed08c93d5a9801cc8f224a046411fd603c538d07Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=fbfc504a24f53f7ebe128ab55cb5dba634f4ece8 | linuxkernelcves |
| linux_kernel | 6.6.66 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f8abd03f83d5fe81e76eb93e2c4373eb9f75fd8aIssue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=fbfc504a24f53f7ebe128ab55cb5dba634f4ece8 | linuxkernelcves |
| linux_kernel | 6.12.5 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d486b5741d987d3e0e6be4ac22cafdf94e6d1a47Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=fbfc504a24f53f7ebe128ab55cb5dba634f4ece8 | linuxkernelcves |
| linux_kernel | 6.13-rc2 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=32cd3db7de97c0c7a018756ce66244342fd583f0Please | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=fbfc504a24f53f7ebe128ab55cb5dba634f4ece8 | 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:xsk: fix OOB map writes when deleting elementsJordy says: In the xsk_map_delete_elem function an unsigned integer(map->max_entries) is compared with a user-controlled signed integer(k). Due to implicit type conversion, a large unsigned value formap->max_entries can bypass the intended bounds check:if (k >= map->max_entries)return -EINVAL;This allows k to hold a negative value (between -2147483648 and -2),which is then used as an array index in m->xsk_map[k], which resultsin an out-of-bounds access.spin_lock_bh(&m->lock);map_entry = &m->xsk_map[k]; // Out-of-bounds map_entryold_xs = unrcu_pointer(xchg(map_entry, NULL));  // Oob writeif (old_xs)xsk_map_sock_delete(old_xs, map_entry);spin_unlock_bh(&m->lock);The xchg operation can then be used to cause an out-of-bounds write.Moreover, the invalid map_entry passed to xsk_map_sock_delete can leadto further memory corruption. It indeed results in following splat:[76612.897343] BUG: unable to handle page fault for address: ffffc8fc2e461108[76612.904330] #PF: supervisor write access in kernel mode[76612.909639] #PF: error_code(0x0002) - not-present page[76612.914855] PGD 0 P4D 0[76612.917431] Oops: Oops: 0002 [#1] PREEMPT SMP[76612.921859] CPU: 11 UID: 0 PID: 10318 Comm: a.out Not tainted 6.12.0-rc1+ #470[76612.929189] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019[76612.939781] RIP: 0010:xsk_map_delete_elem+0x2d/0x60[76612.944738] Code: 00 00 41 54 55 53 48 63 2e 3b 6f 24 73 38 4c 8d a7 f8 00 00 00 48 89 fb 4c 89 e7 e8 2d bf 05 00 48 8d b4 eb 00 01 00 00 31 ff <48> 87 3e 48 85 ff 74 05 e8 16 ff ff ff 4c 89 e7 e8 3e bc 05 00 31[76612.963774] RSP: 0018:ffffc9002e407df8 EFLAGS: 00010246[76612.969079] RAX: 0000000000000000 RBX: ffffc9002e461000 RCX: 0000000000000000[76612.976323] RDX: 0000000000000001 RSI: ffffc8fc2e461108 RDI: 0000000000000000[76612.983569] RBP: ffffffff80000001 R08: 0000000000000000 R09: 0000000000000007[76612.990812] R10: ffffc9002e407e18 R11: ffff888108a38858 R12: ffffc9002e4610f8[76612.998060] R13: ffff888108a38858 R14: 00007ffd1ae0ac78 R15: ffffc9002e4610c0[76613.005303] FS:  00007f80b6f59740(0000) GS:ffff8897e0ec0000(0000) knlGS:0000000000000000[76613.013517] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033[76613.019349] CR2: ffffc8fc2e461108 CR3: 000000011e3ef001 CR4: 00000000007726f0[76613.026595] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000[76613.033841] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400[76613.041086] PKRU: 55555554[76613.043842] Call Trace:[76613.046331]  <TASK>[76613.048468]  ? __die+0x20/0x60[76613.051581]  ? page_fault_oops+0x15a/0x450[76613.055747]  ? search_extable+0x22/0x30[76613.059649]  ? search_bpf_extables+0x5f/0x80[76613.063988]  ? exc_page_fault+0xa9/0x140[76613.067975]  ? asm_exc_page_fault+0x22/0x30[76613.072229]  ? xsk_map_delete_elem+0x2d/0x60[76613.076573]  ? xsk_map_delete_elem+0x23/0x60[76613.080914]  __sys_bpf+0x19b7/0x23c0[76613.084555]  __x64_sys_bpf+0x1a/0x20[76613.088194]  do_syscall_64+0x37/0xb0[76613.091832]  entry_SYSCALL_64_after_hwframe+0x4b/0x53[76613.096962] RIP: 0033:0x7f80b6d1e88d[76613.100592] Code: 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 b5 0f 00 f7 d8 64 89 01 48[76613.119631] RSP: 002b:00007ffd1ae0ac68 EFLAGS: 00000206 ORIG_RAX: 0000000000000141[76613.131330] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f80b6d1e88d[76613.142632] RDX: 0000000000000098 RSI: 00007ffd1ae0ad20 RDI: 0000000000000003[76613.153967] RBP: 00007ffd1ae0adc0 R08: 0000000000000000 R09: 0000000000000000[76613.166030] R10: 00007f80b6f77040 R11: 0000000000000206 R12: 00007ffd1ae0aed8[76613.177130] R13: 000055ddf42ce1e9 R14: 000055ddf42d0d98 R15: 00---truncated---
 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.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-SP3(5.10.0):否
3.master(6.6.0):否
4.openEuler-24.03-LTS(6.6.0):否
5.openEuler-24.03-LTS-Next(6.6.0):否
6.openEuler-22.03-LTS-SP4(5.10.0):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.openEuler-20.03-LTS-SP4(4.19.90):不修复-超出修复范围
4.openEuler-22.03-LTS-SP3(5.10.0):不修复-超出修复范围
5.openEuler-22.03-LTS-SP4(5.10.0):不修复-超出修复范围
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-2025-1161

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