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CVE-2024-56778— drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check

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存在代码问题漏洞，该漏洞源于STI DRM驱动在sti_hqvdp_atomic_check函数中未检查drm_atomic_get_crtc_state的返回值，可能导致错误指针的解引用，影响显示系统的稳定性和性能。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux dd86dc2f9ae1102f46115be1f1422265c15540f1< 31c857e7496d34e5a32a6f75bc024d0b06fd646a affected
dd86dc2f9ae1102f46115be1f1422265c15540f1< 6b0d0d6e9d3c26697230bf7dc9e6b52bdb24086f affected
dd86dc2f9ae1102f46115be1f1422265c15540f1< 82a5312f874fb18f045d9658e9bd290e3b0621c0 affected
dd86dc2f9ae1102f46115be1f1422265c15540f1< 837eb99ad3340c7a9febf454f41c8e3edb68ac1e affected
dd86dc2f9ae1102f46115be1f1422265c15540f1< c1ab40a1fdfee732c7e6ff2fb8253760293e47e8 affected
4.6 affected
< 4.6 unaffected
5.15.174≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-56778

Vulnerability Information
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Vulnerability Title
drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check The return value of drm_atomic_get_crtc_state() needs to be checked. To avoid use of error pointer 'crtc_state' in case of the failure.
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 代码问题漏洞
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存在代码问题漏洞，该漏洞源于STI DRM驱动在sti_hqvdp_atomic_check函数中未检查drm_atomic_get_crtc_state的返回值，可能导致错误指针的解引用，影响显示系统的稳定性和性能。
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 dd86dc2f9ae1102f46115be1f1422265c15540f1 ~ 31c857e7496d34e5a32a6f75bc024d0b06fd646a -
Linux Linux 4.6 -

II. Public POCs for CVE-2024-56778

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III. Intelligence Information for CVE-2024-56778

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Patches & Fixes for CVE-2024-56778 (5)

Same Patch Batch · Linux · 2025-01-08 · 16 CVEs total

CVE-2024-56779 9.8 CRITICAL nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur
CVE-2024-56775 7.8 HIGH drm/amd/display: Fix handling of plane refcount
CVE-2024-56784 7.8 HIGH drm/amd/display: Adding array index check to prevent memory corruption
CVE-2024-56770 net/sched: netem: account for backlog updates from child qdisc
CVE-2024-56771 mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information
CVE-2024-56773 kunit: Fix potential null dereference in kunit_device_driver_test()
CVE-2024-56772 kunit: string-stream: Fix a UAF bug in kunit_init_suite()
CVE-2024-56774 btrfs: add a sanity check for btrfs root in btrfs_search_slot()
CVE-2024-56776 drm/sti: avoid potential dereference of error pointers
CVE-2024-56777 drm/sti: avoid potential dereference of error pointers in sti_gdp_atomic_check
CVE-2024-56780 quota: flush quota_release_work upon quota writeback
CVE-2024-56782 ACPI: x86: Add adev NULL check to acpi_quirk_skip_serdev_enumeration()
CVE-2024-56783 netfilter: nft_socket: remove WARN_ON_ONCE on maximum cgroup level
CVE-2024-56785 MIPS: Loongson64: DTS: Really fix PCIe port nodes for ls7a
CVE-2024-56787 soc: imx8m: Probe the SoC driver as platform driver

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-56778

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