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🛡️ CVE-2023-53090 — kernel

🟠 CVSS 7.8 — High ✅ No Known Exploit NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

drm/amdkfd: Fix an illegal memory access

In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: Fix an illegal memory access

In the kfd_wait_on_events() function, the kfd_event_waiter structure is

allocated by alloc_event_waiters(), but the event field of the waiter

structure is not initialized; When copy_from_user() fails in the

kfd_wait_on_events() function, it will enter exception handling to

release the previously allocated memory of the waiter structure;

Due to the event field of the waiters structure being accessed

in the free_waiters() function, this results in illegal memory access

and system crash, here is the crash log:

localhost kernel: RIP: 0010:native_queued_spin_lock_slowpath+0x185/0x1e0

localhost kernel: RSP: 0018:ffffaa53c362bd60 EFLAGS: 00010082

localhost kernel: RAX: ff3d3d6bff4007cb RBX: 0000000000000282 RCX: 00000000002c0000

localhost kernel: RDX: ffff9e855eeacb80 RSI: 000000000000279c RDI: ffffe7088f6a21d0

localhost kernel: RBP: ffffe7088f6a21d0 R08: 00000000002c0000 R09: ffffaa53c362be64

localhost kernel: R10: ffffaa53c362bbd8 R11: 0000000000000001 R12: 0000000000000002

localhost kernel: R13: ffff9e7ead15d600 R14: 0000000000000000 R15: ffff9e7ead15d698

localhost kernel: FS: 0000152a3d111700(0000) GS:ffff9e855ee80000(0000) knlGS:0000000000000000

localhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

localhost kernel: CR2: 0000152938000010 CR3: 000000044d7a4000 CR4: 00000000003506e0

localhost kernel: Call Trace:

localhost kernel: _raw_spin_lock_irqsave+0x30/0x40

localhost kernel: remove_wait_queue+0x12/0x50

localhost kernel: kfd_wait_on_events+0x1b6/0x490 [hydcu]

localhost kernel: ? ftrace_graph_caller+0xa0/0xa0

localhost kernel: kfd_ioctl+0x38c/0x4a0 [hydcu]

localhost kernel: ? kfd_ioctl_set_trap_handler+0x70/0x70 [hydcu]

localhost kernel: ? kfd_ioctl_create_queue+0x5a0/0x5a0 [hydcu]

localhost kernel: ? ftrace_graph_caller+0xa0/0xa0

localhost kernel: __x64_sys_ioctl+0x8e/0xd0

localhost kernel: ? syscall_trace_enter.isra.18+0x143/0x1b0

localhost kernel: do_syscall_64+0x33/0x80

localhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9

localhost kernel: RIP: 0033:0x152a4dff68d7

Allocate the structure with kcalloc, and remove redundant 0-initialization

and a redundant loop condition check.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

CVE-2023-53090 is recorded against 2 packages.

  • kernel (from 6.2.0 up to 6.2.8)
  • linux-kernel (from 6.2 up to 6.2.8)

Timeline and source

Published on 2 May 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2023-53090 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-05-02
Updated 2026-08-20
Modified 2026-08-12

Affected Packages

Software From version Fixed in
kernel 6.2.0 6.2.8
linux-kernel 6.2 6.2.8

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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