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CVE-2024-53120— net/mlx5e: CT: Fix null-ptr-deref in add rule err flow

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net/mlx5e组件中mlx5_tc_ct_entry_add_rule函数在回调函数ct_rule_add返回错误时，zone_rule->attr未初始化就被使用，导致空指针解引用。

CVSS 7.5 · High EPSS 0.66% · P51

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 7fac5c2eced36f335ee19ff316bd3182fbeda823< 882f392d9e3649557e71efd78ae20c86039ffb7c affected
7fac5c2eced36f335ee19ff316bd3182fbeda823< 0c7c70ff8b696cfedba350411dca736361ef9a0f affected
7fac5c2eced36f335ee19ff316bd3182fbeda823< 06dc488a593020bd2f006798557d2a32104d8359 affected
7fac5c2eced36f335ee19ff316bd3182fbeda823< 6030f8bd7902e9e276a0edc09bf11979e4e2bc2e affected
7fac5c2eced36f335ee19ff316bd3182fbeda823< e99c6873229fe0482e7ceb7d5600e32d623ed9d9 affected
5.14 affected
< 5.14 unaffected
5.15.174≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-53120

Vulnerability Information
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Vulnerability Title
net/mlx5e: CT: Fix null-ptr-deref in add rule err flow
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: CT: Fix null-ptr-deref in add rule err flow In error flow of mlx5_tc_ct_entry_add_rule(), in case ct_rule_add() callback returns error, zone_rule->attr is used uninitiated. Fix it to use attr which has the needed pointer value. Kernel log: BUG: kernel NULL pointer dereference, address: 0000000000000110 RIP: 0010:mlx5_tc_ct_entry_add_rule+0x2b1/0x2f0 [mlx5_core] … Call Trace: <TASK> ? __die+0x20/0x70 ? page_fault_oops+0x150/0x3e0 ? exc_page_fault+0x74/0x140 ? asm_exc_page_fault+0x22/0x30 ? mlx5_tc_ct_entry_add_rule+0x2b1/0x2f0 [mlx5_core] ? mlx5_tc_ct_entry_add_rule+0x1d5/0x2f0 [mlx5_core] mlx5_tc_ct_block_flow_offload+0xc6a/0xf90 [mlx5_core] ? nf_flow_offload_tuple+0xd8/0x190 [nf_flow_table] nf_flow_offload_tuple+0xd8/0x190 [nf_flow_table] flow_offload_work_handler+0x142/0x320 [nf_flow_table] ? finish_task_switch.isra.0+0x15b/0x2b0 process_one_work+0x16c/0x320 worker_thread+0x28c/0x3a0 ? __pfx_worker_thread+0x10/0x10 kthread+0xb8/0xf0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2d/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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net/mlx5e组件中mlx5_tc_ct_entry_add_rule函数在回调函数ct_rule_add返回错误时，zone_rule->attr未初始化就被使用，导致空指针解引用。
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 7fac5c2eced36f335ee19ff316bd3182fbeda823 ~ 882f392d9e3649557e71efd78ae20c86039ffb7c -
Linux Linux 5.14 -

II. Public POCs for CVE-2024-53120

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III. Intelligence Information for CVE-2024-53120

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Patches & Fixes for CVE-2024-53120 (5)

Same Patch Batch · Linux · 2024-12-02 · 22 CVEs total

CVE-2024-53103 7.8 HIGH hv_sock: Initializing vsk->trans to NULL to prevent a dangling pointer
CVE-2024-53121 7.8 HIGH net/mlx5: fs, lock FTE when checking if active
CVE-2024-53107 7.8 HIGH fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()
CVE-2024-53109 7.8 HIGH nommu: pass NULL argument to vma_iter_prealloc()
CVE-2024-53122 7.5 HIGH mptcp: cope racing subflow creation in mptcp_rcv_space_adjust
CVE-2024-53124 7.5 HIGH net: fix data-races around sk->sk_forward_alloc
CVE-2024-53106 7.3 HIGH ima: fix buffer overrun in ima_eventdigest_init_common
CVE-2024-53108 7.3 HIGH drm/amd/display: Adjust VSDB parser for replay feature
CVE-2024-53110 7.3 HIGH vp_vdpa: fix id_table array not null terminated error
CVE-2024-53111 7.1 HIGH mm/mremap: fix address wraparound in move_page_tables()
CVE-2024-53113 mm: fix NULL pointer dereference in alloc_pages_bulk_noprof
CVE-2024-53104 media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format
CVE-2024-53105 mm: page_alloc: move mlocked flag clearance into free_pages_prepare()
CVE-2024-53112 ocfs2: uncache inode which has failed entering the group
CVE-2024-53114 x86/CPU/AMD: Clear virtualized VMLOAD/VMSAVE on Zen4 client
CVE-2024-53115 drm/vmwgfx: avoid null_ptr_deref in vmw_framebuffer_surface_create_handle
CVE-2024-53116 drm/panthor: Fix handling of partial GPU mapping of BOs
CVE-2024-53117 virtio/vsock: Improve MSG_ZEROCOPY error handling
CVE-2024-53119 virtio/vsock: Fix accept_queue memory leak
CVE-2024-53118 vsock: Fix sk_error_queue memory leak

Showing top 20 of 22 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-53120

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