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CVE-2022-50099— video: fbdev: arkfb: Check the size of screen before memset_io()

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arkfb驱动未验证screen_size参数，可能导致越界写入。

CVSS 7.8 · High EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 681e14730c73cc2c71af282c001de6bc71c22f00< 4a20c5510aa2c031a096a58deb356e91609781c9 affected
681e14730c73cc2c71af282c001de6bc71c22f00< 352305ea50d682b8e081d826da53caf9e744d7d0 affected
681e14730c73cc2c71af282c001de6bc71c22f00< 53198b81930e567ad6b879812d88052a1e8ac79e affected
681e14730c73cc2c71af282c001de6bc71c22f00< 09e733d6ac948e6fda4b16252e44ea46f98fc8b4 affected
681e14730c73cc2c71af282c001de6bc71c22f00< 0701df594bc1d7ae55fed407fb65dd90a93f8a9c affected
681e14730c73cc2c71af282c001de6bc71c22f00< 8bcb1a06e3091716b7cbebe0e91d1de9895068cd affected
681e14730c73cc2c71af282c001de6bc71c22f00< 2ce61c39c2a0b8ec82f48e0f7136f0dac105ae75 affected
681e14730c73cc2c71af282c001de6bc71c22f00< 96b550971c65d54d64728d8ba973487878a06454 affected
… +10 more rows
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I. Basic Information for CVE-2022-50099

Vulnerability Information
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Vulnerability Title
video: fbdev: arkfb: Check the size of screen before memset_io()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: arkfb: Check the size of screen before memset_io() In the function arkfb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug: [ 659.399066] BUG: unable to handle page fault for address: ffffc90003000000 [ 659.399077] #PF: supervisor write access in kernel mode [ 659.399079] #PF: error_code(0x0002) - not-present page [ 659.399094] RIP: 0010:memset_orig+0x33/0xb0 [ 659.399116] Call Trace: [ 659.399122] arkfb_set_par+0x143f/0x24c0 [ 659.399130] fb_set_var+0x604/0xeb0 [ 659.399161] do_fb_ioctl+0x234/0x670 [ 659.399189] fb_ioctl+0xdd/0x130 Fix the this by checking the value of 'screen_size' before memset_io().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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arkfb驱动未验证screen_size参数，可能导致越界写入。
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 681e14730c73cc2c71af282c001de6bc71c22f00 ~ 4a20c5510aa2c031a096a58deb356e91609781c9 -
Linux Linux 2.6.22 -

II. Public POCs for CVE-2022-50099

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III. Intelligence Information for CVE-2022-50099

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Same Patch Batch · Linux · 2025-06-18 · 362 CVEs total

CVE-2025-38075 9.8 CRITICAL scsi: target: iscsi: Fix timeout on deleted connection
CVE-2022-50098 8.8 HIGH scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts
CVE-2022-49934 8.8 HIGH wifi: mac80211: Fix UAF in ieee80211_scan_rx()
CVE-2022-50164 8.8 HIGH wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue
CVE-2022-49974 8.8 HIGH HID: nintendo: fix rumble worker null pointer deref
CVE-2025-38074 8.8 HIGH vhost-scsi: protect vq->log_used with vq->mutex
CVE-2025-38016 8.8 HIGH HID: bpf: abort dispatch if device destroyed
CVE-2025-38052 8.8 HIGH net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done
CVE-2022-49968 8.0 HIGH ieee802154/adf7242: defer destroy_workqueue call
CVE-2022-49939 7.8 HIGH binder: fix UAF of ref->proc caused by race condition
CVE-2025-38064 7.8 HIGH virtio: break and reset virtio devices on device_shutdown()
CVE-2022-50028 7.8 HIGH gadgetfs: ep_io - wait until IRQ finishes
CVE-2022-49935 7.8 HIGH dma-buf/dma-resv: check if the new fence is really later
CVE-2022-50022 7.8 HIGH drivers:md:fix a potential use-after-free bug
CVE-2025-38082 7.8 HIGH gpio: virtuser: fix potential out-of-bound write
CVE-2022-50182 7.8 HIGH media: imx-jpeg: Align upwards buffer size
CVE-2025-38058 7.8 HIGH __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock
CVE-2025-38080 7.8 HIGH drm/amd/display: Increase block_sequence array size
CVE-2025-38068 7.8 HIGH crypto: lzo - Fix compression buffer overrun
CVE-2022-50035 7.8 HIGH drm/amdgpu: Fix use-after-free on amdgpu_bo_list mutex

Showing top 20 of 362 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50099

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