CVE-2023-53090

drm/amdkfd: Fix an illegal memory access

HIGH

7.1

CVSS Score

Published: May 2, 2025 at 03:55 PM UTC

Updated: October 15, 2026 at 10:17 PM UTC

1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

HIGH7.1

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

3.19 ≤ v < 4.19.2794.20 ≤ v < 5.4.2385.11 ≤ v < 5.15.1045.16 ≤ v < 6.1.215.5 ≤ v < 5.10.1766.2 ≤ v < 6.2.83.194a488a7ad71401169cecee75dc94bcce642e2c53

Vendor states this is fixed in 2fece63b55c5d74cd6f5de51159e2cde37e10555 (fixed)

Vendor states this is fixed in 4fc8fff378b2f2039f2a666d9f8c570f4e58352c (fixed)

Vendor states this is fixed in 5a3fb3b745af0ce46ec2e0c8e507bae45b937334 (fixed)

Vendor states this is fixed in 61f306f8df0d5559659c5578cf6d95236bcdcb25 (fixed)

Vendor states this is fixed in 6936525142a015e854d0a23e9ad9ea0a28b3843d (fixed)

Vendor states this is fixed in bbf5eada4334a96e3a204b2307ff5b14dc380b0b (fixed)

Vendor states this is fixed in d9923e7214a870b312bf61f6a89c7554d0966985 (fixed)

Vendor states this is fixed in 3.19 (unaffected)

Vendor states this is fixed in 4.19.279 (unaffected)

Vendor states this is fixed in 5.10.176 (unaffected)

Vendor states this is fixed in 5.15.104 (unaffected)

Vendor states this is fixed in 5.4.238 (unaffected)