CVE-2023-53327
published 2025-09-16CVE-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…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.13%
3.3th percentile
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 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:
? 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.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.3.7-1 (forky) | linux 6.3.7-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= f4b20bb34c83dceade5470288f48f94ce3598ada < adac6508c235a092b91ed9c0110ecf140e9e9441 | adac6508c235a092b91ed9c0110ecf140e9e9441 |
| linux | linux | >= f4b20bb34c83dceade5470288f48f94ce3598ada < 3fb3505636d033bbf7a0851dac63d01732c51d62 | 3fb3505636d033bbf7a0851dac63d01732c51d62 |
| linux | linux | >= f4b20bb34c83dceade5470288f48f94ce3598ada < fd8c1a4aee973e87d890a5861e106625a33b2c4e | fd8c1a4aee973e87d890a5861e106625a33b2c4e |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 6.2 < 6.2.15 | 6.2.15 |
| linux | linux_kernel | >= 6.3 < 6.3.2 | 6.3.2 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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Red Hat
kernel: iommufd/selftest: Catch overflow of uptr and length
vendor_redhat·2025-09-16·CVSS 5.5
CVE-2023-53327 [MEDIUM] kernel: iommufd/selftest: Catch overflow of uptr and length
kernel: iommufd/selftest: Catch overflow of uptr and length
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 0b 41 be 8
RSP: 0018:ffffc90000eabdc0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000
Debian
CVE-2023-53327: linux - In the Linux kernel, the following vulnerability has been resolved: iommufd/sel...
vendor_debian·2023·CVSS 5.5
CVE-2023-53327 [MEDIUM] CVE-2023-53327: linux - In the Linux kernel, the following vulnerability has been resolved: iommufd/sel...
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 0b 41 be 8 RSP: 0018:ffffc90000eabdc0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8214c487 RDX: 0000000000000000 RSI: ff
OSV
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
osv·2025-09-16·CVSS 5.5
CVE-2023-53327 [MEDIUM] 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
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 0b 41 be 8 RSP: 0018:ffffc90000eabdc0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8214c487 RDX: 0000000000000000 RSI: ff
GHSA
GHSA-5j3v-w49r-w347: In the Linux kernel, the following vulnerability has been resolved:
iommufd/selftest: Catch overflow of uptr and length
syzkaller hits a WARN_ON whe
ghsa_unreviewed·2025-09-16
CVE-2023-53327 [MEDIUM] GHSA-5j3v-w49r-w347: In the Linux kernel, the following vulnerability has been resolved:
iommufd/selftest: Catch overflow of uptr and length
syzkaller hits a WARN_ON whe
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 0b 41 be 8
RSP: 0018:ffffc90000eabdc0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8214c487
RDX: 0000000000000000 RSI:
No detection rules found.
No public exploits indexed.
2025-09-16
Published