CVE-2022-50779
- Published: 2025-12-24T13:16:04.740
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:
[] kmalloc_trace+0x27/0xa0
[] orangefs_prepare_debugfs_help_string+0x5e/0x480 [orangefs]
[] _sub_I_65535_1+0x57/0xf70 [crc_itu_t]
[] do_one_initcall+0x87/0x2a0
[] do_init_module+0xdf/0x320
[] load_module+0x2f98/0x3330
[] __do_sys_finit_module+0x113/0x1b0
[] do_syscall_64+0x35/0x80
[] 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.
Related CVE by CWE
No related CWE found.
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How to fix CVE-2022-50779
Description: 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 […]
Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public
How to Fix:
- Check if you're running the affected product
- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
Exploit Difficulty Assessment
Vulnerability Timeline
CVE details first published to NVD database
Added to this CVE tracking system
Detection Rules & IOCs
No specific detection rules generated for this vulnerability type.
No vendor/product data available.