Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\safesetid\lsm.c Create Date:2022-07-28 19:55:29
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:Check whether there is either an exception for user under old cred struct to* set*uid to user under new cred struct, or the UID transition is allowed (by* Linux set*uid rules) even without CAP_SETUID.

Proto:static int safesetid_task_fix_setuid(struct cred *new, const struct cred *old, int flags)

Type:int

Parameter:

TypeParameterName
struct cred *new
const struct cred *old
intflags
134  If Compute a decision for a transition from @src to @dst under the active* policy. == source ID is unaffected by policy Then Return 0
137  If Check whether a caller with old credentials @old is allowed to switch to* credentials that contain @new_uid. && Check whether a caller with old credentials @old is allowed to switch to* credentials that contain @new_uid. && Check whether a caller with old credentials @old is allowed to switch to* credentials that contain @new_uid. && Check whether a caller with old credentials @old is allowed to switch to* credentials that contain @new_uid. Then Return 0
148  force_sig(SIGKILL)
149  Return -EACCES