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CVE-2024-42140— riscv: kexec: Avoid deadlock in kexec crash path

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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riscv:kexec模块中如果kexec crash代码某些位置被调用，machine_kexec_mask_interrupts()函数在尝试获取irqdesc自旋锁时将触发死锁。

AI Predicted 4.9 Difficulty: Easy EPSS 0.20% · P9

Affected Version Matrix 15

VendorProduct Version RangeStatus
Linux Linux 12f237200c169a8667cf9dca7a40df8d7917b9fd< bb80a7911218bbab2a69b5db7d2545643ab0073d affected
b17d19a5314a37f7197afd1a0200affd21a7227d< 653deee48a4682ea17a05b96fb6842795ab5943c affected
b17d19a5314a37f7197afd1a0200affd21a7227d< 7692c9b6baacdee378435f58f19baf0eb69e4155 affected
b17d19a5314a37f7197afd1a0200affd21a7227d< 484dd545271d02d1571e1c6b62ea7df9dbe5e692 affected
b17d19a5314a37f7197afd1a0200affd21a7227d< c562ba719df570c986caf0941fea2449150bcbc4 affected
7594956fec8902dfc18150bf1dca0940cd4ad025 affected
5.15.82< 5.15.163 affected
6.0.12< 6.1 affected
… +7 more rows
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I. Basic Information for CVE-2024-42140

Vulnerability Information
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Vulnerability Title
riscv: kexec: Avoid deadlock in kexec crash path
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: riscv: kexec: Avoid deadlock in kexec crash path If the kexec crash code is called in the interrupt context, the machine_kexec_mask_interrupts() function will trigger a deadlock while trying to acquire the irqdesc spinlock and then deactivate irqchip in irq_set_irqchip_state() function. Unlike arm64, riscv only requires irq_eoi handler to complete EOI and keeping irq_set_irqchip_state() will only leave this possible deadlock without any use. So we simply remove it.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
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riscv:kexec模块中如果kexec crash代码某些位置被调用，machine_kexec_mask_interrupts()函数在尝试获取irqdesc自旋锁时将触发死锁。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 12f237200c169a8667cf9dca7a40df8d7917b9fd ~ bb80a7911218bbab2a69b5db7d2545643ab0073d -
Linux Linux 6.1 -

II. Public POCs for CVE-2024-42140

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III. Intelligence Information for CVE-2024-42140

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Other References for CVE-2024-42140 (5)

Same Patch Batch · Linux · 2024-07-30 · 70 CVEs total

CVE-2024-42108 9.8 CRITICAL net: rswitch: Avoid use-after-free in rswitch_poll()
CVE-2024-42225 8.3 HIGH wifi: mt76: replace skb_put with skb_put_zero
CVE-2024-42120 7.8 HIGH drm/amd/display: Check pipe offset before setting vblank
CVE-2024-42115 7.8 HIGH jffs2: Fix potential illegal address access in jffs2_free_inode
CVE-2024-42112 7.8 HIGH net: txgbe: free isb resources at the right time
CVE-2024-42111 7.8 HIGH btrfs: always do the basic checks for btrfs_qgroup_inherit structure
CVE-2024-42117 7.8 HIGH drm/amd/display: ASSERT when failing to find index by plane/stream id
CVE-2024-42109 7.8 HIGH netfilter: nf_tables: unconditionally flush pending work before notifier
CVE-2024-42162 7.8 HIGH gve: Account for stopped queues when reading NIC stats
CVE-2024-42105 7.8 HIGH nilfs2: fix inode number range checks
CVE-2024-42104 7.8 HIGH nilfs2: add missing check for inode numbers on directory entries
CVE-2024-42103 7.8 HIGH btrfs: fix adding block group to a reclaim list and the unused list during reclaim
CVE-2024-42099 7.8 HIGH s390/dasd: Fix invalid dereferencing of indirect CCW data pointer
CVE-2024-42132 7.6 HIGH bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX
CVE-2024-42133 7.6 HIGH Bluetooth: Ignore too large handle values in BIG
CVE-2024-42152 7.5 HIGH nvmet: fix a possible leak when destroy a ctrl during qp establishment
CVE-2024-42110 7.5 HIGH net: ntb_netdev: Move ntb_netdev_rx_handler() to call netif_rx() from __netif_rx()
CVE-2024-42145 7.5 HIGH IB/core: Implement a limit on UMAD receive List
CVE-2024-42123 7.0 HIGH drm/amdgpu: fix double free err_addr pointer warnings
CVE-2024-42224 7.0 HIGH net: dsa: mv88e6xxx: Correct check for empty list

Showing top 20 of 70 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-42140

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