In the Linux kernel, the following vulnerability has been resolved:
orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string()
When insert and remove the orangefs module, then debug_help_string will be leaked:
unreferenced object 0xffff8881652ba000 (size 4096): comm "insmod", pid 1701, jiffies 4294893639 (age 13218.530s) hex dump (first 32 bytes): 43 6c 69 65 6e 74 20 44 65 62 75 67 20 4b 65 79 Client Debug Key 77 6f 72 64 73 20 61 72 65 20 75 6e 6b 6e 6f 77 words are unknow backtrace: [<0000000004e6f8e3>] kmalloc_trace+0x27/0xa0 [<0000000006f75d85>] orangefs_prepare_debugfs_help_string+0x5e/0x480 [orangefs] [<0000000091270a2a>] _sub_I_65535_1+0x57/0xf70 [crc_itu_t] [<000000004b1ee1a3>] do_one_initcall+0x87/0x2a0 [<000000001d0614ae>] do_init_module+0xdf/0x320 [<00000000efef068c>] load_module+0x2f98/0x3330 [<000000006533b44d>] __do_sys_finit_module+0x113/0x1b0 [<00000000a0da6f99>] do_syscall_64+0x35/0x80 [<000000007790b19b>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
When remove the module, should always free debug_help_string. Should always free the allocated buffer when change the free_debug_help_string.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Ubuntu | — | Upgrade linux-gcp-fipsUpgrade linux-gkeUpgrade linux-oracleUpgrade linux-nvidia-tegra-5.15Upgrade linux-azure-5.15Upgrade linux-hwe-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-riscv-5.15Upgrade linux-raspi-5.4Upgrade linux-oracle-5.4Upgrade linux-intel-iot-realtimeUpgrade linux-gcp-5.4Upgrade linux-gcpUpgrade linux-fipsUpgrade linux-ibmUpgrade linux-gcp-5.15Upgrade linux-intel-iotgUpgrade linux-kvmUpgrade linux-realtimeUpgrade linux-nvidiaUpgrade linux-bluefieldUpgrade linux-xilinx-zynqmpUpgrade linux-azureUpgrade linux-aws-fipsUpgrade linux-ibm-5.4Upgrade linux-azure-fde-5.15Upgrade linux-hwe-5.15Upgrade linux-aws-5.15Upgrade linux-hweUpgrade linux-gcp-4.15Upgrade linux-azure-fipsUpgrade linux-azure-fdeUpgrade linux-aws-5.4Upgrade linux-aws-hweUpgrade linux-awsUpgrade linux-azure-4.15Upgrade linux-azure-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-raspiUpgrade linuxUpgrade linux-iotUpgrade linux-lowlatencyUpgrade linux-gkeopUpgrade linux-oracle-5.15 | Jan 6, 2026 | Dec 24, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 24, 2025 |
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