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CVE-2022-48919— Linux kernel 安全漏洞

CVSS 8.8 · High EPSS 0.47% · P38

影响版本矩阵 8

厂商产品版本范围状态
LinuxLinuxd17abdf7566566fc402c31899b353044a7ff3cf4< 546d60859ecf13380fcabcbeace53a5971493a2baffected
d17abdf7566566fc402c31899b353044a7ff3cf4< 563431c1f3c8f2230e4a9c445fa23758742bc4f0affected
d17abdf7566566fc402c31899b353044a7ff3cf4< 3d6cc9898efdfb062efb74dc18cfc700e082f5d5affected
5.11affected
< 5.11unaffected
5.15.27≤ 5.15.*unaffected
5.16.13≤ 5.16.*unaffected
5.17≤ *unaffected
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一、 漏洞 CVE-2022-48919 基础信息

漏洞信息
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Vulnerability Title
cifs: fix double free race when mount fails in cifs_get_root()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: cifs: fix double free race when mount fails in cifs_get_root() When cifs_get_root() fails during cifs_smb3_do_mount() we call deactivate_locked_super() which eventually will call delayed_free() which will free the context. In this situation we should not proceed to enter the out: section in cifs_smb3_do_mount() and free the same resources a second time. [Thu Feb 10 12:59:06 2022] BUG: KASAN: use-after-free in rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] Read of size 8 at addr ffff888364f4d110 by task swapper/1/0 [Thu Feb 10 12:59:06 2022] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G OE 5.17.0-rc3+ #4 [Thu Feb 10 12:59:06 2022] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.0 12/17/2019 [Thu Feb 10 12:59:06 2022] Call Trace: [Thu Feb 10 12:59:06 2022] <IRQ> [Thu Feb 10 12:59:06 2022] dump_stack_lvl+0x5d/0x78 [Thu Feb 10 12:59:06 2022] print_address_description.constprop.0+0x24/0x150 [Thu Feb 10 12:59:06 2022] ? rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] kasan_report.cold+0x7d/0x117 [Thu Feb 10 12:59:06 2022] ? rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] __asan_load8+0x86/0xa0 [Thu Feb 10 12:59:06 2022] rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] rcu_core+0x547/0xca0 [Thu Feb 10 12:59:06 2022] ? call_rcu+0x3c0/0x3c0 [Thu Feb 10 12:59:06 2022] ? __this_cpu_preempt_check+0x13/0x20 [Thu Feb 10 12:59:06 2022] ? lock_is_held_type+0xea/0x140 [Thu Feb 10 12:59:06 2022] rcu_core_si+0xe/0x10 [Thu Feb 10 12:59:06 2022] __do_softirq+0x1d4/0x67b [Thu Feb 10 12:59:06 2022] __irq_exit_rcu+0x100/0x150 [Thu Feb 10 12:59:06 2022] irq_exit_rcu+0xe/0x30 [Thu Feb 10 12:59:06 2022] sysvec_hyperv_stimer0+0x9d/0xc0 ... [Thu Feb 10 12:59:07 2022] Freed by task 58179: [Thu Feb 10 12:59:07 2022] kasan_save_stack+0x26/0x50 [Thu Feb 10 12:59:07 2022] kasan_set_track+0x25/0x30 [Thu Feb 10 12:59:07 2022] kasan_set_free_info+0x24/0x40 [Thu Feb 10 12:59:07 2022] ____kasan_slab_free+0x137/0x170 [Thu Feb 10 12:59:07 2022] __kasan_slab_free+0x12/0x20 [Thu Feb 10 12:59:07 2022] slab_free_freelist_hook+0xb3/0x1d0 [Thu Feb 10 12:59:07 2022] kfree+0xcd/0x520 [Thu Feb 10 12:59:07 2022] cifs_smb3_do_mount+0x149/0xbe0 [cifs] [Thu Feb 10 12:59:07 2022] smb3_get_tree+0x1a0/0x2e0 [cifs] [Thu Feb 10 12:59:07 2022] vfs_get_tree+0x52/0x140 [Thu Feb 10 12:59:07 2022] path_mount+0x635/0x10c0 [Thu Feb 10 12:59:07 2022] __x64_sys_mount+0x1bf/0x210 [Thu Feb 10 12:59:07 2022] do_syscall_64+0x5c/0xc0 [Thu Feb 10 12:59:07 2022] entry_SYSCALL_64_after_hwframe+0x44/0xae [Thu Feb 10 12:59:07 2022] Last potentially related work creation: [Thu Feb 10 12:59:07 2022] kasan_save_stack+0x26/0x50 [Thu Feb 10 12:59:07 2022] __kasan_record_aux_stack+0xb6/0xc0 [Thu Feb 10 12:59:07 2022] kasan_record_aux_stack_noalloc+0xb/0x10 [Thu Feb 10 12:59:07 2022] call_rcu+0x76/0x3c0 [Thu Feb 10 12:59:07 2022] cifs_umount+0xce/0xe0 [cifs] [Thu Feb 10 12:59:07 2022] cifs_kill_sb+0xc8/0xe0 [cifs] [Thu Feb 10 12:59:07 2022] deactivate_locked_super+0x5d/0xd0 [Thu Feb 10 12:59:07 2022] cifs_smb3_do_mount+0xab9/0xbe0 [cifs] [Thu Feb 10 12:59:07 2022] smb3_get_tree+0x1a0/0x2e0 [cifs] [Thu Feb 10 12:59:07 2022] vfs_get_tree+0x52/0x140 [Thu Feb 10 12:59:07 2022] path_mount+0x635/0x10c0 [Thu Feb 10 12:59:07 2022] __x64_sys_mount+0x1bf/0x210 [Thu Feb 10 12:59:07 2022] do_syscall_64+0x5c/0xc0 [Thu Feb 10 12:59:07 2022] entry_SYSCALL_64_after_hwframe+0x44/0xae
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在cifs_smb3_do_mount函数中的out:部分错误地释放相同资源。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商产品影响版本CPE订阅
LinuxLinux d17abdf7566566fc402c31899b353044a7ff3cf4 ~ 546d60859ecf13380fcabcbeace53a5971493a2b -
LinuxLinux 5.11 -

二、漏洞 CVE-2022-48919 的公开POC

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三、漏洞 CVE-2022-48919 的情报信息

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CVE-2022-48919 补丁与修复 (1)

CVE-2022-48919 其他参考 (6)

同批安全公告 · Linux · 2024-08-22 · 共 42 条

CVE-2022-489418.8 HIGHLinux kernel 竞争条件问题漏洞
CVE-2022-489257.8 HIGHLinux kernel 安全漏洞
CVE-2022-489237.8 HIGHLinux kernel 安全漏洞
CVE-2022-489277.8 HIGHLinux kernel 安全漏洞
CVE-2022-489137.8 HIGHLinux kernel 安全漏洞
CVE-2022-489127.8 HIGHLinux kernel 安全漏洞
CVE-2022-489117.8 HIGHLinux kernel 安全漏洞
CVE-2022-489327.8 HIGHLinux kernel 安全漏洞
CVE-2022-489357.8 HIGHLinux kernel 安全漏洞
CVE-2022-489407.8 HIGHLinux kernel 缓冲区错误漏洞
CVE-2022-489437.1 HIGHLinux kernel 安全漏洞
CVE-2022-48933Linux kernel 安全漏洞
CVE-2022-48934Linux kernel 安全漏洞
CVE-2022-48931Linux kernel 安全漏洞
CVE-2022-48937Linux kernel 安全漏洞
CVE-2022-48938Linux kernel 输入验证错误漏洞
CVE-2022-48930Linux kernel 安全漏洞
CVE-2022-48929Linux kernel 安全漏洞
CVE-2022-48928Linux kernel 安全漏洞
CVE-2022-48939Linux kernel 安全漏洞

显示前 20 条，共 42 条。 查看全部 &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48919

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