CVE-2023-53327

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-53327
In the Linux kernel, the following vulnerability has been resolved: iommufd/selftest: Catch overflow of uptr and length syzkaller hits a WARN_ON when trying to have a uptr close to UINTPTR_MAX: WARNING: CPU: 1 PID: 393 at drivers/iommu/iommufd/selftest.c:403 iommufd_test+0xb19/0x16f0 Modules linked in: CPU: 1 PID: 393 Comm: repro Not tainted 6.2.0-c9c3395d5e3d #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 RIP: 0010:iommufd_test+0xb19/0x16f0 Code: 94 c4 31 ff 44 89 e6 e8 a5 54 17 ff 45 84 e4 0f 85 bb 0b 00 00 41 be fb ff ff ff e8 31 53 17 ff e9 a0 f7 ff ff e8 27 53 17 ff <0f> 0b 41 be 8 RSP: 0018:ffffc90000eabdc0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8214c487 RDX: 0000000000000000 RSI: ffff88800f5c8000 RDI: 0000000000000002 RBP: ffffc90000eabe48 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: 00000000cd2b0000 R13: 00000000cd2af000 R14: 0000000000000000 R15: ffffc90000eabe68 FS: 00007f94d76d5740(0000) GS:ffff88807dd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000043 CR3: 0000000006880006 CR4: 0000000000770ee0 PKRU: 55555554 Call Trace: <TASK> ? write_comp_data+0x2f/0x90 iommufd_fops_ioctl+0x1ef/0x310 __x64_sys_ioctl+0x10e/0x160 ? __pfx_iommufd_fops_ioctl+0x10/0x10 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc Check that the user memory range doesn't overflow.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/3fb3505636d033bbf7a0851dac63d01732c51d62 Patch
https://git.kernel.org/stable/c/adac6508c235a092b91ed9c0110ecf140e9e9441 Patch
https://git.kernel.org/stable/c/fd8c1a4aee973e87d890a5861e106625a33b2c4e Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

10 Dec 2025, 18:42

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE NVD-CWE-noinfo
First Time Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/3fb3505636d033bbf7a0851dac63d01732c51d62 - () https://git.kernel.org/stable/c/3fb3505636d033bbf7a0851dac63d01732c51d62 - Patch
References () https://git.kernel.org/stable/c/adac6508c235a092b91ed9c0110ecf140e9e9441 - () https://git.kernel.org/stable/c/adac6508c235a092b91ed9c0110ecf140e9e9441 - Patch
References () https://git.kernel.org/stable/c/fd8c1a4aee973e87d890a5861e106625a33b2c4e - () https://git.kernel.org/stable/c/fd8c1a4aee973e87d890a5861e106625a33b2c4e - Patch

16 Sep 2025, 17:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-09-16 17:15

Updated : 2025-12-10 18:42

NVD link : CVE-2023-53327

Mitre link : CVE-2023-53327

CVE.ORG link : CVE-2023-53327

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo