Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2023-52455— iommu: Don't reserve 0-length IOVA region

EPSS 0.03% · P7
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2023-52455

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
iommu: Don't reserve 0-length IOVA region
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommu: Don't reserve 0-length IOVA region When the bootloader/firmware doesn't setup the framebuffers, their address and size are 0 in "iommu-addresses" property. If IOVA region is reserved with 0 length, then it ends up corrupting the IOVA rbtree with an entry which has pfn_hi < pfn_lo. If we intend to use display driver in kernel without framebuffer then it's causing the display IOMMU mappings to fail as entire valid IOVA space is reserved when address and length are passed as 0. An ideal solution would be firmware removing the "iommu-addresses" property and corresponding "memory-region" if display is not present. But the kernel should be able to handle this by checking for size of IOVA region and skipping the IOVA reservation if size is 0. Also, add a warning if firmware is requesting 0-length IOVA region reservation.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于当引导加载程序/固件未设置帧缓冲区时，可能导致 IOVA rbtree 被破坏。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux a5bf3cfce8cb77d9d24613ab52d520896f83dd48 ~ 98b8a550da83cc392a14298c4b3eaaf0332ae6ad -
LinuxLinux 6.3 -

II. Public POCs for CVE-2023-52455

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-52455

请登录查看更多情报信息。

Same Patch Batch · Linux · 2024-02-23 · 19 CVEs total

CVE-2023-52461drm/sched: Fix bounds limiting when given a malformed entity
CVE-2024-26593i2c: i801: Fix block process call transactions
CVE-2024-26594ksmbd: validate mech token in session setup
CVE-2023-52453hisi_acc_vfio_pci: Update migration data pointer correctly on saving/resume
CVE-2023-52454nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length
CVE-2023-52456serial: imx: fix tx statemachine deadlock
CVE-2023-52458block: add check that partition length needs to be aligned with block size
CVE-2023-52457serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed
CVE-2023-52459media: v4l: async: Fix duplicated list deletion
CVE-2024-26598KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache
CVE-2023-52460drm/amd/display: Fix NULL pointer dereference at hibernate
CVE-2023-52462bpf: fix check for attempt to corrupt spilled pointer
CVE-2023-52464EDAC/thunderx: Fix possible out-of-bounds string access
CVE-2023-52463efivarfs: force RO when remounting if SetVariable is not supported
CVE-2024-26596net: dsa: fix netdev_priv() dereference before check on non-DSA netdevice events
CVE-2024-26595mlxsw: spectrum_acl_tcam: Fix NULL pointer dereference in error path
CVE-2024-26597net: qualcomm: rmnet: fix global oob in rmnet_policy
CVE-2024-26599pwm: Fix out-of-bounds access in of_pwm_single_xlate()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52455

No comments yet

Leave a comment