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CVE-2024-42138— mlxsw: core_linecards: Fix double memory deallocation in case of invalid INI file

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mlxsw:core_linecards模块中在无效的INI文件情况下，mlxsw_linecard_types_init()释放了内存但没有将指针重置为NULL，导致在mlxsw_linecards_init()中再次释放内存。

AI Predicted 4.3 Difficulty: Hard EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1499.001 · OS Exhaustion Flood

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux b217127e5e4ee0ecfce7c5f84cfe082238123bda< ab557f5cd993a3201b09593633d04b891263d5c0 affected
b217127e5e4ee0ecfce7c5f84cfe082238123bda< f8b55a465b0e8a500179808166fe9420f5c091a1 affected
b217127e5e4ee0ecfce7c5f84cfe082238123bda< 9af7437669b72f804fc4269f487528dbbed142a2 affected
b217127e5e4ee0ecfce7c5f84cfe082238123bda< 8ce34dccbe8fa7d2ef86f2d8e7db2a9b67cabfc3 affected
5.19 affected
< 5.19 unaffected
6.1.98≤ 6.1.* unaffected
6.6.39≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-42138

Vulnerability Information
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Vulnerability Title
mlxsw: core_linecards: Fix double memory deallocation in case of invalid INI file
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mlxsw: core_linecards: Fix double memory deallocation in case of invalid INI file In case of invalid INI file mlxsw_linecard_types_init() deallocates memory but doesn't reset pointer to NULL and returns 0. In case of any error occurred after mlxsw_linecard_types_init() call, mlxsw_linecards_init() calls mlxsw_linecard_types_fini() which performs memory deallocation again. Add pointer reset to NULL. Found by Linux Verification Center (linuxtesting.org) with SVACE.
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mlxsw:core_linecards模块中在无效的INI文件情况下，mlxsw_linecard_types_init()释放了内存但没有将指针重置为NULL，导致在mlxsw_linecards_init()中再次释放内存。
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 b217127e5e4ee0ecfce7c5f84cfe082238123bda ~ ab557f5cd993a3201b09593633d04b891263d5c0 -
Linux Linux 5.19 -

II. Public POCs for CVE-2024-42138

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III. Intelligence Information for CVE-2024-42138

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Other References for CVE-2024-42138 (2)

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-2024-42138

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