Date: Sun, 2 Nov 2025 18:17:15 GMT From: Olivier Certner <olce@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 2be5127c4a31 - main - setcred(): Fix RACCT resource accounting on credentials change Message-ID: <202511021817.5A2IHFTG093892@gitrepo.freebsd.org>
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The branch main has been updated by olce: URL: https://cgit.FreeBSD.org/src/commit/?id=2be5127c4a31bacac9b4158395bfa844f6033626 commit 2be5127c4a31bacac9b4158395bfa844f6033626 Author: Olivier Certner <olce@FreeBSD.org> AuthorDate: 2025-10-29 17:07:59 +0000 Commit: Olivier Certner <olce@FreeBSD.org> CommitDate: 2025-11-02 18:15:30 +0000 setcred(): Fix RACCT resource accounting on credentials change When credentials are changed, we need to adjust the sum of resources associated to the initial and new process' user IDs (and old and new login classes and jails, but setcred() does not change them) for them to stay consistent. PR: 290352 MFC after: 3 days Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D53457 --- sys/kern/kern_prot.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/sys/kern/kern_prot.c b/sys/kern/kern_prot.c index df725cfebd97..3c145851b683 100644 --- a/sys/kern/kern_prot.c +++ b/sys/kern/kern_prot.c @@ -696,7 +696,7 @@ kern_setcred(struct thread *const td, const u_int flags, gid_t *groups = NULL; gid_t smallgroups[CRED_SMALLGROUPS_NB]; int error; - bool cred_set; + bool cred_set = false; /* Bail out on unrecognized flags. */ if (flags & ~SETCREDF_MASK) @@ -839,17 +839,32 @@ kern_setcred(struct thread *const td, const u_int flags, if (cred_set) { setsugid(p); to_free_cred = old_cred; +#ifdef RACCT + racct_proc_ucred_changed(p, old_cred, new_cred); +#endif +#ifdef RCTL + crhold(new_cred); +#endif MPASS(error == 0); } else error = EAGAIN; unlock_finish: PROC_UNLOCK(p); + /* * Part 3: After releasing the process lock, we perform cleanups and * finishing operations. */ +#ifdef RCTL + if (cred_set) { + rctl_proc_ucred_changed(p, new_cred); + /* Paired with the crhold() just above. */ + crfree(new_cred); + } +#endif + #ifdef MAC if (mac_set_proc_data != NULL) mac_set_proc_finish(td, proc_label_set, mac_set_proc_data);home | help
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