In the Linux kernel, the following vulnerability has been resolved:
iommufd: Fix out_fput in iommufd_fault_alloc()
As fput() calls the file->f_op->release op, where fault obj and ictx are getting released, there is no need to release these two after fput() one more time, which would result in imbalanced refcounts: refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 48 PID: 2369 at lib/refcount.c:31 refcount_warn_saturate+0x60/0x230 Call trace: refcount_warn_saturate+0x60/0x230 (P) refcount_warn_saturate+0x60/0x230 (L) iommufd_fault_fops_release+0x9c/0xe0 [iommufd] ... VFS: Close: file count is 0 (f_op=iommufd_fops [iommufd]) WARNING: CPU: 48 PID: 2369 at fs/open.c:1507 filp_flush+0x3c/0xf0 Call trace: filp_flush+0x3c/0xf0 (P) filp_flush+0x3c/0xf0 (L) __arm64_sys_close+0x34/0x98 ... imbalanced put on file reference count WARNING: CPU: 48 PID: 2369 at fs/file.c:74 __file_ref_put+0x100/0x138 Call trace: __file_ref_put+0x100/0x138 (P) __file_ref_put+0x100/0x138 (L) __fput_sync+0x4c/0xd0
Drop those two lines to fix the warnings above.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Dec 27, 2024 |
| Ubuntu | — | Upgrade linux-image-6.11.0-1011-lowlatency-64kUpgrade linux-image-6.11.0-1012-azure-fdeUpgrade linux-image-gcpUpgrade linux-image-oem-24.04Upgrade linux-image-oracleUpgrade linux-image-virtualUpgrade linux-image-6.11.0-1017-oemUpgrade linux-image-6.11.0-1011-gcp-64kUpgrade linux-image-awsUpgrade linux-image-6.11.0-1010-raspiUpgrade linux-image-6.11.0-21-genericUpgrade linux-image-oem-24.04bUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.11.0-1011-awsUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-realtimeUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-oracle-64kUpgrade linux-image-6.11.0-1013-oracle-64kUpgrade linux-image-6.11.0-1012-azureUpgrade linux-image-6.11.0-1011-lowlatencyUpgrade linux-image-6.11.0-1007-realtimeUpgrade linux-image-6.11.0-1013-oracleUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-gcp-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-azureUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.11.0-21-generic-64kUpgrade linux-image-6.11.0-1011-gcpUpgrade linux-image-generic-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-azure-fdeUpgrade linux-image-genericUpgrade linux-image-raspi | Mar 28, 2025 | Dec 27, 2024 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub