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CVE-2024-43894— drm/client: fix null pointer dereference in drm_client_modeset_probe

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，该漏洞源于在drm_client_modeset_probe函数中未对drm_mode_duplicate函数的返回值进行检查，可能导致空指针取消引用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux cf13909aee054f5aa667d4b9da0ac7df4f6c1327< 24ddda932c43ffe156c7f3c568bed85131c63ae6 affected
cf13909aee054f5aa667d4b9da0ac7df4f6c1327< 5291d4f73452c91e8a11f71207617e3e234d418e affected
cf13909aee054f5aa667d4b9da0ac7df4f6c1327< c763dfe09425152b6bb0e348900a637c62c2ce52 affected
cf13909aee054f5aa667d4b9da0ac7df4f6c1327< d64847c383100423aecb6ac5f18be5f4316d9d62 affected
cf13909aee054f5aa667d4b9da0ac7df4f6c1327< d64fc94f7bb24fc2be0d6bd5df8df926da461a6d affected
cf13909aee054f5aa667d4b9da0ac7df4f6c1327< 612cae53e99ce32a58cb821b3b67199eb6e92dff affected
cf13909aee054f5aa667d4b9da0ac7df4f6c1327< 113fd6372a5bb3689aba8ef5b8a265ed1529a78f affected
5.3 affected
… +8 more rows
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I. Basic Information for CVE-2024-43894

Vulnerability Information
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Vulnerability Title
drm/client: fix null pointer dereference in drm_client_modeset_probe
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/client: fix null pointer dereference in drm_client_modeset_probe In drm_client_modeset_probe(), the return value of drm_mode_duplicate() is assigned to modeset->mode, which will lead to a possible NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd.
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，该漏洞源于在drm_client_modeset_probe函数中未对drm_mode_duplicate函数的返回值进行检查，可能导致空指针取消引用。
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 cf13909aee054f5aa667d4b9da0ac7df4f6c1327 ~ 24ddda932c43ffe156c7f3c568bed85131c63ae6 -
Linux Linux 5.3 -

II. Public POCs for CVE-2024-43894

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III. Intelligence Information for CVE-2024-43894

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Other References for CVE-2024-43894 (6)

Same Patch Batch · Linux · 2024-08-26 · 39 CVEs total

CVE-2024-44942 7.8 HIGH f2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during GC
CVE-2024-43910 7.8 HIGH bpf: add missing check_func_arg_reg_off() to prevent out-of-bounds memory accesses
CVE-2024-44934 7.8 HIGH net: bridge: mcast: wait for previous gc cycles when removing port
CVE-2024-43897 7.8 HIGH net: drop bad gso csum_start and offset in virtio_net_hdr
CVE-2024-43892 7.8 HIGH memcg: protect concurrent access to mem_cgroup_idr
CVE-2024-43891 7.8 HIGH tracing: Have format file honor EVENT_FILE_FL_FREED
CVE-2024-44939 7.8 HIGH jfs: fix null ptr deref in dtInsertEntry
CVE-2024-43888 7.8 HIGH mm: list_lru: fix UAF for memory cgroup
CVE-2024-44941 7.8 HIGH f2fs: fix to cover read extent cache access with lock
CVE-2024-44940 7.5 HIGH fou: remove warn in gue_gro_receive on unsupported protocol
CVE-2024-44933 7.3 HIGH bnxt_en : Fix memory out-of-bounds in bnxt_fill_hw_rss_tbl()
CVE-2024-43913 7.0 HIGH nvme: apple: fix device reference counting
CVE-2024-44938 jfs: Fix shift-out-of-bounds in dbDiscardAG
CVE-2024-44937 platform/x86: intel-vbtn: Protect ACPI notify handler against recursion
CVE-2024-44936 power: supply: rt5033: Bring back i2c_set_clientdata
CVE-2024-44935 sctp: Fix null-ptr-deref in reuseport_add_sock().
CVE-2024-44932 idpf: fix UAFs when destroying the queues
CVE-2024-44931 gpio: prevent potential speculation leaks in gpio_device_get_desc()
CVE-2024-43914 md/raid5: avoid BUG_ON() while continue reshape after reassembling
CVE-2024-43912 wifi: nl80211: disallow setting special AP channel widths

Showing top 20 of 39 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-43894

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