CVE-2022-50466None▾ Sunlit

fs/binfmt_elf: Fix memory leak in load_elf_binary()

In the Linux kernel, the following vulnerability has been resolved: fs/binfmt_elf: Fix memory leak in load_elf_binary() There is a memory leak reported by kmemleak: unreferenced object 0xffff88817104ef80 (size 224): comm "xfs_ad…

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score3/ 100 · Minimal

impact 2.8 · likelihood 0 · exploitation 0

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Proof of concept

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Published

Oct 1, 2025

Updated

Nov 5, 2026

CVSS

—

Vendor

Linux

Product

Linux

CWE

—

Depth score

3 · Minimal

EPSS

0.16% · p5

Platforms

—

Source

CVEORG

Vector

—

CISA SSVC

decided 2026-11-05

Exploitation: none
Automatable: no
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Nov 5.

0.2% → 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 400 days

Oct 1, 2025Published
Disclosed via CVEORG
Nov 5, 2026Record revised
Last analysed / modified upstream
Nov 5, 2026EPSS first tracked
0.2%

Linux #cve.org

Affected

Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < 706215300411d48db6b51a5832b872632a84bbc1
Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < 265b6fb780f57d10449a40e94219b28fa52479cc
Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < acd9b4914f1c5928c7ae8ebc623d6291eb1a573a
Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < 594d2a14f2168c09b13b114c3d457aa939403e52
Linux 5.7

Full technical detail▾

Overview

In the Linux kernel, the following vulnerability has been resolved:

fs/binfmt_elf: Fix memory leak in load_elf_binary()

There is a memory leak reported by kmemleak:

unreferenced object 0xffff88817104ef80 (size 224): comm "xfs_admin", pid 47165, jiffies 4298708825 (age 1333.476s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 60 a8 b3 00 81 88 ff ff a8 10 5a 00 81 88 ff ff `.........Z..... backtrace: [<ffffffff819171e1>] __alloc_file+0x21/0x250 [<ffffffff81918061>] alloc_empty_file+0x41/0xf0 [<ffffffff81948cda>] path_openat+0xea/0x3d30 [<ffffffff8194ec89>] do_filp_open+0x1b9/0x290 [<ffffffff8192660e>] do_open_execat+0xce/0x5b0 [<ffffffff81926b17>] open_exec+0x27/0x50 [<ffffffff81a69250>] load_elf_binary+0x510/0x3ed0 [<ffffffff81927759>] bprm_execve+0x599/0x1240 [<ffffffff8192a997>] do_execveat_common.isra.0+0x4c7/0x680 [<ffffffff8192b078>] __x64_sys_execve+0x88/0xb0 [<ffffffff83bbf0a5>] do_syscall_64+0x35/0x80

If "interp_elf_ex" fails to allocate memory in load_elf_binary(), the program will take the "out_free_ph" error handing path, resulting in "interpreter" file resource is not released.

Fix it by adding an error handing path "out_free_file", which will release the file resource when "interp_elf_ex" failed to allocate memory.

Affected

Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < 706215300411d48db6b51a5832b872632a84bbc1
Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < 265b6fb780f57d10449a40e94219b28fa52479cc
Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < acd9b4914f1c5928c7ae8ebc623d6291eb1a573a
Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < 594d2a14f2168c09b13b114c3d457aa939403e52
Linux 5.7

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org

fs/binfmt_elf: Fix memory leak in load_elf_binary()

▾ Sunlit zone — Low / medium · no exploitation signal

Depth score3/ 100 · Minimal

impact 2.8 · likelihood 0 · exploitation 0

Overview

In the Linux kernel, the following vulnerability has been resolved:

fs/binfmt_elf: Fix memory leak in load_elf_binary()

There is a memory leak reported by kmemleak:

If "interp_elf_ex" fails to allocate memory in load_elf_binary(), the program will take the "out_free_ph" error handing path, resulting in "interpreter" file resource is not released.

Fix it by adding an error handing path "out_free_file", which will release the file resource when "interp_elf_ex" failed to allocate memory.

Affected

Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < 706215300411d48db6b51a5832b872632a84bbc1

Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < 265b6fb780f57d10449a40e94219b28fa52479cc

Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < acd9b4914f1c5928c7ae8ebc623d6291eb1a573a

Linux >= 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b < 594d2a14f2168c09b13b114c3d457aa939403e52

Linux 5.7