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CVE-2026-53356— drm/i915/gem: Fix phys BO pread/pwrite with offset

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基金会开源的一款操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于sg_page()返回struct page指针而非(void *)导致pread/pwrite缩放错误，使用非零偏移时可能访问BO的错误部分。

CVSS 7.8 · High EPSS 0.13% · P2

Possible ATT&CK Techniques 1 AI

T1206

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux c6790dc22312f592c1434577258b31c48c72d52a< 40f738991058eb3e3530c3006a5bd6fd5e29f035 affected
c6790dc22312f592c1434577258b31c48c72d52a< 1ec8fc63e9cdb22da54e48e536c9204020416fc6 affected
c6790dc22312f592c1434577258b31c48c72d52a< 14469860e2e39b7095dcd658d2bad38a11110a68 affected
c6790dc22312f592c1434577258b31c48c72d52a< 07c33be968d9e0cab6cba38c81850a09942fcb2e affected
c6790dc22312f592c1434577258b31c48c72d52a< 3bd168dd835b93a3862cd05b0d13c432b115f9d6 affected
c6790dc22312f592c1434577258b31c48c72d52a< 32d4c5d328a3ff995420f4f85163e1e403f43628 affected
c6790dc22312f592c1434577258b31c48c72d52a< dd51a2eeb93bc6faa892ff9083911dd23f82c187 affected
c6790dc22312f592c1434577258b31c48c72d52a< d21ad938398bca695a511307de38a65889e3b354 affected
… +10 more rows
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I. Basic Information for CVE-2026-53356

Vulnerability Information
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Vulnerability Title
drm/i915/gem: Fix phys BO pread/pwrite with offset
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Fix phys BO pread/pwrite with offset sg_page() returns struct page pointer not (void *) so the scaling of pread/pwrite is wrong for phys BO and wrong parts of BO would be accessed if non-zero offset is used. Last impacted platform with overlay or cursor planes using phys mapping was Gen3/945G/Lakeport. (cherry picked from commit 3e49a2f85070b2fb672c1e0fdba281a4ea3aebe6)
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基金会开源的一款操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于sg_page()返回struct page指针而非(void *)导致pread/pwrite缩放错误，使用非零偏移时可能访问BO的错误部分。
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 c6790dc22312f592c1434577258b31c48c72d52a ~ 40f738991058eb3e3530c3006a5bd6fd5e29f035 -
Linux Linux 5.7 -

II. Public POCs for CVE-2026-53356

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III. Intelligence Information for CVE-2026-53356

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Patches & Fixes for CVE-2026-53356 (8)

Same Patch Batch · Linux · 2026-07-01 · 31 CVEs total

CVE-2026-53355 9.8 CRITICAL net: rds: clear i_sends on setup unwind
CVE-2026-53354 8.8 HIGH arm64: errata: Mitigate TLBI errata on various Arm CPUs
CVE-2026-53341 7.8 HIGH fhandle: fix UAF due to unlocked ->mnt_ns read in may_decode_fh()
CVE-2026-53329 7.0 HIGH drm/amd/display: Use krealloc_array() in dal_vector_reserve()
CVE-2026-53326 debugobjects: Don't call fill_pool() in early boot hardirq context
CVE-2026-53330 drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval()
CVE-2026-53353 hsr: Remove WARN_ONCE() in hsr_addr_is_self().
CVE-2026-53328 sched_ext: Don't warn on NULL cgrp_moving_from in scx_cgroup_move_task()
CVE-2026-53352 signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()
CVE-2026-53351 riscv/ptrace: Use USER_REGSET_NOTE_TYPE for REGSET_CFI
CVE-2026-53350 ASoC: wm_adsp: Fix NULL dereference when removing firmware controls
CVE-2026-53348 ASoC: SDCA: fix NULL pointer dereference in sdca_dev_unregister_functions
CVE-2026-53349 netfilter: nf_conntrack: destroy stale expectfn expectations on unregister
CVE-2026-53346 rust: arm64: set uwtable llvm module flag for CONFIG_UNWIND_TABLES
CVE-2026-53347 drm/virtio: Fix driver removal with disabled KMS
CVE-2026-53344 pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init
CVE-2026-53345 KVM: Don't WARN if memory is dirtied without a vCPU when the VM is dying
CVE-2026-53343 ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow
CVE-2026-53342 arm64: mm: call pagetable dtor when freeing hot-removed page tables
CVE-2026-53327 debugobjects: Do not fill_pool() if pi_blocked_on

Showing top 20 of 31 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-53356

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