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CVE-2022-49063— Linux kernel 安全漏洞

AI 预测 7.8 利用难度: 较易 EPSS 0.27% · P19

影响版本矩阵 10

厂商产品版本范围状态
LinuxLinux28bf26724fdb0e02267d19e280d6717ee810a10d< ba2f6ec28733fb6b24ed086e676df3df4c138f3faffected
28bf26724fdb0e02267d19e280d6717ee810a10d< 618df75f2e30c7838a3e010ca32cd4893ec9fe33affected
28bf26724fdb0e02267d19e280d6717ee810a10d< d08d2fb6d99d82da1c63aba5c0d1c6f237e150f3affected
28bf26724fdb0e02267d19e280d6717ee810a10d< d7442f512b71fc63a99c8a801422dde4fbbf9f93affected
5.8affected
< 5.8unaffected
5.10.238≤ 5.10.*unaffected
5.15.184≤ 5.15.*unaffected
… +2 条更多
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一、 漏洞 CVE-2022-49063 基础信息

漏洞信息
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Vulnerability Title
ice: arfs: fix use-after-free when freeing @rx_cpu_rmap
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ice: arfs: fix use-after-free when freeing @rx_cpu_rmap The CI testing bots triggered the following splat: [ 718.203054] BUG: KASAN: use-after-free in free_irq_cpu_rmap+0x53/0x80 [ 718.206349] Read of size 4 at addr ffff8881bd127e00 by task sh/20834 [ 718.212852] CPU: 28 PID: 20834 Comm: sh Kdump: loaded Tainted: G S W IOE 5.17.0-rc8_nextqueue-devqueue-02643-g23f3121aca93 #1 [ 718.219695] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.02.01.0012.070720200218 07/07/2020 [ 718.223418] Call Trace: [ 718.227139] [ 718.230783] dump_stack_lvl+0x33/0x42 [ 718.234431] print_address_description.constprop.9+0x21/0x170 [ 718.238177] ? free_irq_cpu_rmap+0x53/0x80 [ 718.241885] ? free_irq_cpu_rmap+0x53/0x80 [ 718.245539] kasan_report.cold.18+0x7f/0x11b [ 718.249197] ? free_irq_cpu_rmap+0x53/0x80 [ 718.252852] free_irq_cpu_rmap+0x53/0x80 [ 718.256471] ice_free_cpu_rx_rmap.part.11+0x37/0x50 [ice] [ 718.260174] ice_remove_arfs+0x5f/0x70 [ice] [ 718.263810] ice_rebuild_arfs+0x3b/0x70 [ice] [ 718.267419] ice_rebuild+0x39c/0xb60 [ice] [ 718.270974] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 718.274472] ? ice_init_phy_user_cfg+0x360/0x360 [ice] [ 718.278033] ? delay_tsc+0x4a/0xb0 [ 718.281513] ? preempt_count_sub+0x14/0xc0 [ 718.284984] ? delay_tsc+0x8f/0xb0 [ 718.288463] ice_do_reset+0x92/0xf0 [ice] [ 718.292014] ice_pci_err_resume+0x91/0xf0 [ice] [ 718.295561] pci_reset_function+0x53/0x80 <...> [ 718.393035] Allocated by task 690: [ 718.433497] Freed by task 20834: [ 718.495688] Last potentially related work creation: [ 718.568966] The buggy address belongs to the object at ffff8881bd127e00 which belongs to the cache kmalloc-96 of size 96 [ 718.574085] The buggy address is located 0 bytes inside of 96-byte region [ffff8881bd127e00, ffff8881bd127e60) [ 718.579265] The buggy address belongs to the page: [ 718.598905] Memory state around the buggy address: [ 718.601809] ffff8881bd127d00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 718.604796] ffff8881bd127d80: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc [ 718.607794] >ffff8881bd127e00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 718.610811] ^ [ 718.613819] ffff8881bd127e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 718.617107] ffff8881bd127f00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc This is due to that free_irq_cpu_rmap() is always being called *after* (devm_)free_irq() and thus it tries to work with IRQ descs already freed. For example, on device reset the driver frees the rmap right before allocating a new one (the splat above). Make rmap creation and freeing function symmetrical with {request,free}_irq() calls i.e. do that on ifup/ifdown instead of device probe/remove/resume. These operations can be performed independently from the actual device aRFS configuration. Also, make sure ice_vsi_free_irq() clears IRQ affinity notifiers only when aRFS is disabled -- otherwise, CPU rmap sets and clears its own and they must not be touched manually.
来源: CVE Program / CVE List V5
CVSS Information
N/A
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，该漏洞源于释放rx_cpu_rmap时存在释放后重用问题。
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 28bf26724fdb0e02267d19e280d6717ee810a10d ~ ba2f6ec28733fb6b24ed086e676df3df4c138f3f -
LinuxLinux 5.8 -

二、漏洞 CVE-2022-49063 的公开POC

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三、漏洞 CVE-2022-49063 的情报信息

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CVE-2022-49063 补丁与修复 (3)

同批安全公告 · Linux · 2025-02-26 · 共 706 条

CVE-2022-49498Linux kernel 安全漏洞
CVE-2022-49486Linux kernel 安全漏洞
CVE-2022-49488Linux kernel 安全漏洞
CVE-2022-49489Linux kernel 安全漏洞
CVE-2022-49490Linux kernel 安全漏洞
CVE-2022-49491Linux kernel 安全漏洞
CVE-2022-49492Linux kernel 安全漏洞
CVE-2022-49493Linux kernel 安全漏洞
CVE-2022-49494Linux kernel 安全漏洞
CVE-2022-49495Linux kernel 安全漏洞
CVE-2022-49497Linux kernel 安全漏洞
CVE-2022-49496Linux kernel 安全漏洞
CVE-2022-49502Linux kernel 安全漏洞
CVE-2022-49507Linux kernel 安全漏洞
CVE-2022-49508Linux kernel 安全漏洞
CVE-2022-49506Linux kernel 安全漏洞
CVE-2022-49504Linux kernel 安全漏洞
CVE-2022-49505Linux kernel 安全漏洞
CVE-2022-49501Linux kernel 安全漏洞
CVE-2022-49500Linux kernel 安全漏洞

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IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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