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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00047.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
dc0336214eb07ee9de2a41dd4c81c744ffa419ac affected < 44d3eac26a5e5268d11cc342dc202b0d31505c0a
dc0336214eb07ee9de2a41dd4c81c744ffa419ac affected < f2b8a6aac561a49fe02c99683c40a8b87a9f68fc
dc0336214eb07ee9de2a41dd4c81c744ffa419ac affected < ba9d3b9cec20957fd86bb1bf525b4ea8b64b2dea
dc0336214eb07ee9de2a41dd4c81c744ffa419ac affected < 2e7c09121064df93c58bbc49d3d0f608d3f584bd
dc0336214eb07ee9de2a41dd4c81c744ffa419ac affected < b8affa0c6405ee968dcb6030bee2cf719a464752
dc0336214eb07ee9de2a41dd4c81c744ffa419ac affected < 39529b79b023713d4f2d3479dc0ca43ba99df726
dc0336214eb07ee9de2a41dd4c81c744ffa419ac affected < 3fc221d9a16339a913a0341d3efc7fef339073e1
dc0336214eb07ee9de2a41dd4c81c744ffa419ac affected < 19be31668552a198e887762e25bdcc560800ecb4
dc0336214eb07ee9de2a41dd4c81c744ffa419ac affected < d23417a5bf3a3afc55de5442eb46e1e60458b0a1
Linux Linux affected
Version Status Constraints
4.9 affected —
0 unaffected < 4.9
4.9.337 unaffected ≤ 4.9.*
4.14.303 unaffected ≤ 4.14.*
4.19.270 unaffected ≤ 4.19.*
5.4.229 unaffected ≤ 5.4.*
5.10.163 unaffected ≤ 5.10.*
5.15.86 unaffected ≤ 5.15.*
6.0.16 unaffected ≤ 6.0.*
6.1.2 unaffected ≤ 6.1.*
6.2 unaffected ≤ *

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/19be31668552a198e887762e25bdcc560800ecb4 cve-icon cve-icon
https://git.kernel.org/stable/c/2e7c09121064df93c58bbc49d3d0f608d3f584bd cve-icon cve-icon
https://git.kernel.org/stable/c/39529b79b023713d4f2d3479dc0ca43ba99df726 cve-icon cve-icon
https://git.kernel.org/stable/c/3fc221d9a16339a913a0341d3efc7fef339073e1 cve-icon cve-icon
https://git.kernel.org/stable/c/44d3eac26a5e5268d11cc342dc202b0d31505c0a cve-icon cve-icon
https://git.kernel.org/stable/c/b8affa0c6405ee968dcb6030bee2cf719a464752 cve-icon cve-icon
https://git.kernel.org/stable/c/ba9d3b9cec20957fd86bb1bf525b4ea8b64b2dea cve-icon cve-icon
https://git.kernel.org/stable/c/d23417a5bf3a3afc55de5442eb46e1e60458b0a1 cve-icon cve-icon
https://git.kernel.org/stable/c/f2b8a6aac561a49fe02c99683c40a8b87a9f68fc cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025122401-CVE-2022-50779-fa1d@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50779 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50779 cve-icon
History

Thu, 25 Dec 2025 12:15:00 +0000

Type Values Removed Values Added
References

Wed, 24 Dec 2025 13:15:00 +0000

Type Values Removed Values Added
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 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.
Title orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-02T15:04:42.632Z

Reserved: 2025-12-24T13:02:21.547Z

Link: CVE-2022-50779

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-24T13:16:04.740

Modified: 2025-12-29T15:58:34.503

Link: CVE-2022-50779

cve-icon Redhat

Severity :

Publid Date: 2025-12-24T00:00:00Z

Links: CVE-2022-50779 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.