nvmet: fix a memory leak in nvmet_auth_set_key

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2022-49807
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-05-01 15:16:04 UTC
Updated2026-11-05 20:17:13 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: nvmet: fix a memory leak in nvmet_auth_set_key When changing dhchap secrets we need to release the old secrets as well. kmemleak complaint: -- unreferenced object 0xffff8c7f44ed8180 (size 64): comm "check", pid 7304, jiffies 4295686133 (age 72034.246s) hex dump (first 32 bytes): 44 48 48 43 2d 31 3a 30 30 3a 4c 64 4c 4f 64 71 DHHC-1:00:LdLOdq 79 56 69 67 77 48 55 32 6d 5a 59 4c 7a 35 59 38 yVigwHU2mZYLz5Y8 backtrace: [<00000000b6fc5071>] kstrdup+0x2e/0x60 [<00000000f0f4633f>] 0xffffffffc0e07ee6 [<0000000053006c05>] 0xffffffffc0dff783 [<00000000419ae922>] configfs_write_iter+0xb1/0x120 [<000000008183c424>] vfs_write+0x2be/0x3c0 [<000000009005a2a5>] ksys_write+0x5f/0xe0 [<00000000cd495c89>] do_syscall_64+0x38/0x90 [<00000000f2a84ac5>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001700000 probability, percentile 0.064440000 (date 2026-11-05)

Problem Types: CWE-401

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 6.1 rc1 All All
Operating System Linux Linux Kernel 6.1 rc2 All All
Operating System Linux Linux Kernel 6.1 rc3 All All
Operating System Linux Linux Kernel 6.1 rc4 All All
Operating System Linux Linux Kernel 6.1 rc5 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected db1312dd95488b5e6ff362ff66fcf953a46b1821 65710ea51d4a185592c7b14c9e33d0c4a364f074 git Not specified
CNA Linux Linux affected db1312dd95488b5e6ff362ff66fcf953a46b1821 0a52566279b4ee65ecd2503d7b7342851f84755c git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.0.10 6.0.* semver Not specified
CNA Linux Linux unaffected 6.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/65710ea51d4a185592c7b14c9e33d0c4a364f074 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/0a52566279b4ee65ecd2503d7b7342851f84755c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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