# CVE-2022-50316: orangefs: Fix kmemleak in orangefs_sysfs_init()

CVE-2022-50316 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50316, released September 15, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-50316
- Priority: Routine
- CVSS: 5.5 (Moderate)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 15, 2025
- Weakness: Missing Release of Memory after Effective Lifetime
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-50316

## Description

In the Linux kernel, the following vulnerability has been resolved:  orangefs: Fix kmemleak in orangefs_sysfs_init()  When insert and remove the orangefs module, there are kobjects memory leaked as below:  unreferenced object 0xffff88810f95af00 (size 64):   comm "insmod", pid 783, jiffies 4294813439 (age 65.512s)   hex dump (first 32 bytes):     a0 83 af 01 81 88 ff ff 08 af 95 0f 81 88 ff ff  ................     08 af 95 0f 81 88 ff ff 00 00 00 00 00 00 00 00  ................   backtrace:     [<0000000031ab7788>] kmalloc_trace+0x27/0xa0     [<000000005a6e4dfe>] orangefs_sysfs_init+0x42/0x3a0     [<00000000722645ca>] 0xffffffffa02780fe     [<000000004232d9f7>] do_one_initcall+0x87/0x2a0     [<0000000054f22384>] do_init_module+0xdf/0x320     [<000000003263bdea>] load_module+0x2f98/0x3330     [<0000000052cd4153>] __do_sys_finit_module+0x113/0x1b0     [<00000000250ae02b>] do_syscall_64+0x35/0x80     [<00000000f11c03c7>] entry_SYSCALL_64_after_hwframe+0x46/0xb0  unreferenced object 0xffff88810f95ae80 (size 64):   comm "insmod", pid 783, jiffies 4294813439 (age 65.512s)   hex dump (first 32 bytes):     c8 90 0f 02 81 88 ff ff 88 ae 95 0f 81 88 ff ff  ................     88 ae 95 0f 81 88 ff ff 00 00 00 00 00 00 00 00  ................   backtrace:     [<0000000031ab7788>] kmalloc_trace+0x27/0xa0     [<000000001a4841fa>] orangefs_sysfs_init+0xc7/0x3a0     [<00000000722645ca>] 0xffffffffa02780fe     [<000000004232d9f7>] do_one_initcall+0x87/0x2a0     [<0000000054f22384>] do_init_module+0xdf/0x320     [<000000003263bdea>] load_module+0x2f98/0x3330     [<0000000052cd4153>] __do_sys_finit_module+0x113/0x1b0     [<00000000250ae02b>] do_syscall_64+0x35/0x80     [<00000000f11c03c7>] entry_SYSCALL_64_after_hwframe+0x46/0xb0  unreferenced object 0xffff88810f95ae00 (size 64):   comm "insmod", pid 783, jiffies 4294813440 (age 65.511s)   hex dump (first 32 bytes):     60 87 a1 00 81 88 ff ff 08 ae 95 0f 81 88 ff ff  `...............     08 ae 95 0f 81 88 ff ff 00 00 00 00 00 00 00 00  ................   backtrace:     [<0000000031ab7788>] kmalloc_trace+0x27/0xa0     [<000000005915e797>] orangefs_sysfs_init+0x12b/0x3a0     [<00000000722645ca>] 0xffffffffa02780fe     [<000000004232d9f7>] do_one_initcall+0x87/0x2a0     [<0000000054f22384>] do_init_module+0xdf/0x320     [<000000003263bdea>] load_module+0x2f98/0x3330     [<0000000052cd4153>] __do_sys_finit_module+0x113/0x1b0     [<00000000250ae02b>] do_syscall_64+0x35/0x80     [<00000000f11c03c7>] entry_SYSCALL_64_after_hwframe+0x46/0xb0  unreferenced object 0xffff88810f95ad80 (size 64):   comm "insmod", pid 783, jiffies 4294813440 (age 65.511s)   hex dump (first 32 bytes):     78 90 0f 02 81 88 ff ff 88 ad 95 0f 81 88 ff ff  x...............     88 ad 95 0f 81 88 ff ff 00 00 00 00 00 00 00 00  ................   backtrace:     [<0000000031ab7788>] kmalloc_trace+0x27/0xa0     [<000000007a14eb35>] orangefs_sysfs_init+0x1ac/0x3a0     [<00000000722645ca>] 0xffffffffa02780fe     [<000000004232d9f7>] do_one_initcall+0x87/0x2a0     [<0000000054f22384>] do_init_module+0xdf/0x320     [<000000003263bdea>] load_module+0x2f98/0x3330     [<0000000052cd4153>] __do_sys_finit_module+0x113/0x1b0     [<00000000250ae02b>] do_syscall_64+0x35/0x80     [<00000000f11c03c7>] entry_SYSCALL_64_after_hwframe+0x46/0xb0  unreferenced object 0xffff88810f95ac00 (size 64):   comm "insmod", pid 783, jiffies 4294813440 (age 65.531s)   hex dump (first 32 bytes):     e0 ff 67 02 81 88 ff ff 08 ac 95 0f 81 88 ff ff  ..g.............     08 ac 95 0f 81 88 ff ff 00 00 00 00 00 00 00 00  ................   backtrace:     [<0000000031ab7788>] kmalloc_trace+0x27/0xa0     [<000000001f38adcb>] orangefs_sysfs_init+0x291/0x3a0     [<00000000722645ca>] 0xffffffffa02780fe     [<000000004232d9f7>] do_one_initcall+0x87/0x2a0     [<0000000054f22384>] do_init_module+0xdf/0x320     [<000000003263bdea>] load_module+0x2f98/0x3330     [<0000000052cd4153>] __do_sys_finit_module+0x113/0x1b0     [<00000000250ae02b>] do_syscall_64+0x35/ ---truncated---

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.4-1 | [DEBIAN-CVE-2022-50316](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50316.md) | Sep 15, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.1.4-1 | [DEBIAN-CVE-2022-50316](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50316.md) | Sep 15, 2025 |
| Linux | linux Debian 14 | 6.1.4-1 | [DEBIAN-CVE-2022-50316](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50316.md) | Sep 15, 2025 |

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