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CVE-2026-93811

ksmbd: Fix acl.sd_buf memory leak and invalid sd_size error handling

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

ksmbd: Fix acl.sd_buf memory leak and invalid sd_size error handling

1. When ndr_decode_v4_ntacl() fails, the code jumped to free_n_data
   which only freed n.data, skipping kfree(acl.sd_buf) and leaking
   the buffer. Zero-initialize struct xattr_ntacl acl, reorder error
   labels to out_free to release acl.sd_buf on all error paths.

2. if (acl.sd_size < sizeof(struct smb_ntsd)) is true, original code
   returned success without freeing sd_buf and left stale *pntsd.
   Set rc = -EINVAL before jumping to out_free to return error code and
   free buffer.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version cb69d4d6f709f87c94afa28ae64c501576692171
Version < f46a70a082bdbfecbe074af8a719c26c4deb58c6
Status affected
Version 8f0541186e9ad1b62accc9519cc2b7a7240272a7
Version < 86c2625fb9863139b359805fc6be1e31edbd3d65
Status affected
Version 8f0541186e9ad1b62accc9519cc2b7a7240272a7
Version < edc17db83085624a2b1bacf6a4521d7f15571737
Status affected
Version 8f0541186e9ad1b62accc9519cc2b7a7240272a7
Version < c3836f55e0dab96314774215e12d87f63fa919f2
Status affected
Version 8f0541186e9ad1b62accc9519cc2b7a7240272a7
Version < 6e6329322ad733c5b23555c609353841560b26bc
Status affected
Version 8f0541186e9ad1b62accc9519cc2b7a7240272a7
Version < d708a36634bb7b6f94d0e76d587d2ec50b2b93b5
Status affected
Version 6e8f4abf584253cbaa596ea4ad13110cf61cd4c9
Status affected
Version 8e33102309bd6839b2e2e158f93a7b378cb4655d
Status affected
Version 5.15.62
Version < 5.15.222
Status affected
Version 5.18.18
Version < 5.19
Status affected
Version 5.19.2
Version < 5.20
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.0
Status affected
Version 0
Version < 6.0
Status unaffected
Version <= 5.15.*
Version 5.15.222
Status unaffected
Version <= 6.1.*
Version 6.1.189
Status unaffected
Version <= 6.6.*
Version 6.6.158
Status unaffected
Version <= 6.12.*
Version 6.12.111
Status unaffected
Version <= 6.18.*
Version 6.18.53
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.052
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/c3836f55e0dab96314774215e12d87f63fa919f2
https://git.kernel.org/stable/c/6e6329322ad733c5b23555c609353841560b26bc
https://git.kernel.org/stable/c/d708a36634bb7b6f94d0e76d587d2ec50b2b93b5
https://git.kernel.org/stable/c/86c2625fb9863139b359805fc6be1e31edbd3d65
https://git.kernel.org/stable/c/edc17db83085624a2b1bacf6a4521d7f15571737
https://git.kernel.org/stable/c/f46a70a082bdbfecbe074af8a719c26c4deb58c6