305 matches found
ksmbd: restore DACL size on check_add_overflow() to avoid malformed ACL
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ksmbd: bound DACL dedup walk to copied ACEs
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CVE-2026-68099
In the Linux kernel, the following vulnerability has been resolved: ksmbd: restore DACL size on checkaddoverflow to avoid malformed ACL checkaddoverflow unconditionally writes the truncated sum into d even on overflow, per its contract in include/linux/overflow.h. The four checkaddoverflow guards...
CVE-2026-68100
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate numsubauth when copying ACE in setntacldacl setntacldacl copies each ACE from the attacker-controlled stored security descriptor verbatim into the response DACL without checking sid.numsubauth. The ACE bytes...
UBUNTU-CVE-2026-68099
In the Linux kernel, the following vulnerability has been resolved: ksmbd: restore DACL size on checkaddoverflow to avoid malformed ACL checkaddoverflow unconditionally writes the truncated sum into d even on overflow, per its contract in include/linux/overflow.h. The four checkaddoverflow guards...
CVE-2026-68098
In the Linux kernel, the following vulnerability has been resolved: ksmbd: bound DACL dedup walk to copied ACEs setntacldacl can stop copying ACEs before consuming the full input DACL when size accounting overflows. When that happens, numaces reflects only the ACEs that were actually copied into...
UBUNTU-CVE-2026-68098
In the Linux kernel, the following vulnerability has been resolved: ksmbd: bound DACL dedup walk to copied ACEs setntacldacl can stop copying ACEs before consuming the full input DACL when size accounting overflows. When that happens, numaces reflects only the ACEs that were actually copied into...
EUVD-2026-55481
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate numsubauth when copying ACE in setntacldacl setntacldacl copies each ACE from the attacker-controlled stored security descriptor verbatim into the response DACL without checking sid.numsubauth. The ACE bytes...
CVE-2026-68099
The CVE-2026-68099 vulnerability is in ksmbd within the Linux kernel, where check_add_overflow() could cause an on-wire NT ACL to be malformed. In the affected DACL builders (set_posix_acl_entries_dacl() and set_ntacl_dacl()), overflow handling previously allowed the loop to break while the desti...
EUVD-2026-55479
In the Linux kernel, the following vulnerability has been resolved: ksmbd: bound DACL dedup walk to copied ACEs setntacldacl can stop copying ACEs before consuming the full input DACL when size accounting overflows. When that happens, numaces reflects only the ACEs that were actually copied into...
CVE-2026-68098
CVE-2026-68098 affects ksmbd in the Linux kernel. The root cause is in set_ntacl_dacl(), which can stop copying ACEs when DACL size accounting overflows. As a result, the dedup walk may inspect a tail beyond the copied ACEs, potentially enabling an out-of-bounds read with possible denial of servi...
CVE-2026-68099: Undefined Security Weakness
In the Linux kernel, the following vulnerability has been resolved: ksmbd: restore DACL size on checkaddoverflow to avoid malformed ACL checkaddoverflow unconditionally writes the truncated sum into d even on overflow, per its contract in include/linux/overflow.h. The four checkaddoverflow guards...
PT-2026-69499
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ksmbd module where the set ntacl dacl function may stop copying Access Control Entries ACEs before processing the entire input Discretionary Access Control List DA...
SUSE CVE-2026-64379
In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777 in modefromsid When modefromsid is active, parsedacl applies the server-provided subauth2 value from the NFS mode SID to cfmode without masking to 07777. Apply the correct masking,...
CVE-2026-64379
In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777 in modefromsid When modefromsid is active, parsedacl applies the server-provided subauth2 value from the NFS mode SID to cfmode without masking to 07777. Apply the correct masking,...
UBUNTU-CVE-2026-64394
In the Linux kernel, the following vulnerability has been resolved: ksmbd: add a WRITEDAC/WRITEOWNER check to SMB2 SETINFO SECURITY commit cc57232cae23 "ksmbd: fix FSCTL permission bypass by adding a permission check for FSCTLSETSPARSE" added a fp-daccess gate to fsctlsetsparse and noted that...
UBUNTU-CVE-2026-64379
In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777 in modefromsid When modefromsid is active, parsedacl applies the server-provided subauth2 value from the NFS mode SID to cfmode without masking to 07777. Apply the correct masking,...
CVE-2026-64379 smb: client: mask server-provided mode to 07777 in modefromsid
In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777 in modefromsid When modefromsid is active, parsedacl applies the server-provided subauth2 value from the NFS mode SID to cfmode without masking to 07777. Apply the correct masking,...
EUVD-2026-48923
In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777 in modefromsid When modefromsid is active, parsedacl applies the server-provided subauth2 value from the NFS mode SID to cfmode without masking to 07777. Apply the correct masking,...
CVE-2026-63909
A flaw was found in the ksmbd component of the Linux kernel. A transposed bounds check in the smbcheckpermdacl function can lead to a 2-byte heap out-of-bounds OOB read during Server Message Block SMB2 create operations. This vulnerability may allow a remote attacker to disclose sensitive...