CVE-2022-50466
fs/binfmt_elf: Fix memory leak in load_elf_binary()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
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.
Timeline
ID reserved
By Linux
Published
- 13 months later
· 13 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b – < 706215300411d48db6b51a5832b872632a84bbc1
- affected 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b – < 265b6fb780f57d10449a40e94219b28fa52479cc
- affected 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b – < acd9b4914f1c5928c7ae8ebc623d6291eb1a573a
- affected 0693ffebcfe5ac7b31f63ad54587007f7d96fb7b – < 594d2a14f2168c09b13b114c3d457aa939403e52
- affected 5.7
- unaffected < 5.7
- unaffected 5.10.153 – ≤ 5.10.*
- unaffected 5.15.77 – ≤ 5.15.*
- unaffected 6.0.7 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (4)
- https://git.kernel.org/stable/c/706215300411d48db6b51a5832b872632a84bbc1 (opens in a new tab)
- https://git.kernel.org/stable/c/265b6fb780f57d10449a40e94219b28fa52479cc (opens in a new tab)
- https://git.kernel.org/stable/c/acd9b4914f1c5928c7ae8ebc623d6291eb1a573a (opens in a new tab)
- https://git.kernel.org/stable/c/594d2a14f2168c09b13b114c3d457aa939403e52 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-50466)Record last updated .