The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=9b729333bb2495afb8821044fa42c9ebe0874703
commit 9b729333bb2495afb8821044fa42c9ebe0874703 Author: Konstantin Belousov <[email protected]> AuthorDate: 2026-05-28 09:06:04 +0000 Commit: Konstantin Belousov <[email protected]> CommitDate: 2026-05-28 20:59:25 +0000 image activators: pass the current thread Reviewed by: markj Tested by: Alex S <[email protected]> Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D57294 --- sys/kern/imgact_elf.c | 36 ++++++++++++++++-------------------- sys/kern/kern_exec.c | 1 + sys/sys/imgact.h | 1 + 3 files changed, 18 insertions(+), 20 deletions(-) diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c index af0841c75549..42cdfa08f19b 100644 --- a/sys/kern/imgact_elf.c +++ b/sys/kern/imgact_elf.c @@ -94,7 +94,7 @@ static int __elfN(check_header)(const Elf_Ehdr *hdr); static const Elf_Brandinfo *__elfN(get_brandinfo)(struct image_params *imgp, const char *interp, int32_t *osrel, uint32_t *fctl0); -static int __elfN(load_file)(struct proc *p, const char *file, u_long *addr, +static int __elfN(load_file)(struct thread *td, const char *file, u_long *addr, u_long *entry); static int __elfN(load_section)(const struct image_params *imgp, vm_ooffset_t offset, caddr_t vmaddr, size_t memsz, size_t filsz, @@ -780,8 +780,8 @@ __elfN(load_sections)(const struct image_params *imgp, const Elf_Ehdr *hdr, * the entry point for the loaded file. */ static int -__elfN(load_file)(struct proc *p, const char *file, u_long *addr, - u_long *entry) +__elfN(load_file)(struct thread *td, const char *file, u_long *addr, + u_long *entry) { struct { struct nameidata nd; @@ -802,7 +802,7 @@ __elfN(load_file)(struct proc *p, const char *file, u_long *addr, * XXXJA: This check can go away once we are sufficiently confident * that the checks in namei() are correct. */ - if (IN_CAPABILITY_MODE(curthread)) + if (IN_CAPABILITY_MODE(td)) return (ECAPMODE); #endif @@ -814,7 +814,8 @@ __elfN(load_file)(struct proc *p, const char *file, u_long *addr, /* * Initialize part of the common data */ - imgp->proc = p; + imgp->td = td; + imgp->proc = td->td_proc; imgp->attr = attr; NDINIT(nd, LOOKUP, ISOPEN | FOLLOW | LOCKSHARED | LOCKLEAF, @@ -867,8 +868,8 @@ __elfN(load_file)(struct proc *p, const char *file, u_long *addr, if (error != 0) goto fail; - if (p->p_sysent->sv_protect != NULL) - p->p_sysent->sv_protect(imgp, SVP_INTERP); + if (imgp->proc->p_sysent->sv_protect != NULL) + imgp->proc->p_sysent->sv_protect(imgp, SVP_INTERP); *addr = base_addr; *entry = (unsigned long)hdr->e_entry + rbase; @@ -1008,7 +1009,6 @@ static int __elfN(get_interp)(struct image_params *imgp, const Elf_Phdr *phdr, char **interpp, bool *free_interpp) { - struct thread *td; char *interp; int error, interp_name_len; @@ -1016,8 +1016,6 @@ __elfN(get_interp)(struct image_params *imgp, const Elf_Phdr *phdr, ("%s: p_type %u != PT_INTERP", __func__, phdr->p_type)); ASSERT_VOP_LOCKED(imgp->vp, __func__); - td = curthread; - /* Path to interpreter */ if (phdr->p_filesz < 2 || phdr->p_filesz > MAXPATHLEN) { uprintf("Invalid PT_INTERP\n"); @@ -1045,8 +1043,8 @@ __elfN(get_interp)(struct image_params *imgp, const Elf_Phdr *phdr, error = vn_rdwr(UIO_READ, imgp->vp, interp, interp_name_len, phdr->p_offset, - UIO_SYSSPACE, IO_NODELOCKED, td->td_ucred, - NOCRED, NULL, td); + UIO_SYSSPACE, IO_NODELOCKED, imgp->td->td_ucred, + NOCRED, NULL, imgp->td); if (error != 0) { free(interp, M_TEMP); uprintf("i/o error PT_INTERP %d\n", error); @@ -1079,13 +1077,13 @@ __elfN(load_interp)(struct image_params *imgp, const Elf_Brandinfo *brand_info, if (brand_info->interp_newpath != NULL && (brand_info->interp_path == NULL || strcmp(interp, brand_info->interp_path) == 0)) { - error = __elfN(load_file)(imgp->proc, + error = __elfN(load_file)(imgp->td, brand_info->interp_newpath, addr, entry); if (error == 0) return (0); } - error = __elfN(load_file)(imgp->proc, interp, addr, entry); + error = __elfN(load_file)(imgp->td, interp, addr, entry); if (error == 0) return (0); @@ -1102,7 +1100,6 @@ __elfN(load_interp)(struct image_params *imgp, const Elf_Brandinfo *brand_info, static int __CONCAT(exec_, __elfN(imgact))(struct image_params *imgp) { - struct thread *td; const Elf_Ehdr *hdr; const Elf_Phdr *phdr; Elf_Auxargs *elf_auxargs; @@ -1152,7 +1149,6 @@ __CONCAT(exec_, __elfN(imgact))(struct image_params *imgp) entry = proghdr = 0; interp = NULL; free_interp = false; - td = curthread; /* * Somewhat arbitrary, limit accepted max alignment for the @@ -1329,7 +1325,7 @@ __CONCAT(exec_, __elfN(imgact))(struct image_params *imgp) map = &vmspace->vm_map; maxv = sv->sv_usrstack; if ((imgp->map_flags & MAP_ASLR_STACK) == 0) - maxv -= lim_max(td, RLIMIT_STACK); + maxv -= lim_max(imgp->td, RLIMIT_STACK); if (error == 0 && mapsz >= maxv - vm_map_min(map)) { uprintf("Excessive mapping size\n"); error = ENOEXEC; @@ -1339,7 +1335,7 @@ __CONCAT(exec_, __elfN(imgact))(struct image_params *imgp) KASSERT((map->flags & MAP_ASLR) != 0, ("ET_DYN_ADDR_RAND but !MAP_ASLR")); error = __CONCAT(rnd_, __elfN(base))(map, - vm_map_min(map) + mapsz + lim_max(td, RLIMIT_DATA), + vm_map_min(map) + mapsz + lim_max(imgp->td, RLIMIT_DATA), /* reserve half of the address space to interpreter */ maxv / 2, maxalign, &imgp->et_dyn_addr); } @@ -1362,7 +1358,7 @@ __CONCAT(exec_, __elfN(imgact))(struct image_params *imgp) * calculation is that it leaves room for the heap to grow to * its maximum allowed size. */ - addr = round_page((vm_offset_t)vmspace->vm_daddr + lim_max(td, + addr = round_page((vm_offset_t)vmspace->vm_daddr + lim_max(imgp->td, RLIMIT_DATA)); if ((map->flags & MAP_ASLR) != 0) { maxv1 = maxv / 2 + addr / 2; @@ -2809,7 +2805,7 @@ __elfN(parse_notes)(const struct image_params *imgp, const Elf_Note *checknote, } error = vn_rdwr(UIO_READ, imgp->vp, buf, pnote->p_filesz, pnote->p_offset, UIO_SYSSPACE, IO_NODELOCKED, - curthread->td_ucred, NOCRED, NULL, curthread); + imgp->td->td_ucred, NOCRED, NULL, imgp->td); if (error != 0) { uprintf("i/o error PT_NOTE\n"); goto retf; diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index 958ec559fd8d..4066682cbcc5 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -448,6 +448,7 @@ do_execve(struct thread *td, struct image_args *args, struct mac *mac_p, */ bzero(imgp, sizeof(*imgp)); imgp->proc = p; + imgp->td = td; imgp->attr = &attr; imgp->args = args; oldcred = p->p_ucred; diff --git a/sys/sys/imgact.h b/sys/sys/imgact.h index c1c94a2eabfd..51cda4406cad 100644 --- a/sys/sys/imgact.h +++ b/sys/sys/imgact.h @@ -57,6 +57,7 @@ struct image_args { struct image_params { struct proc *proc; /* our process */ + struct thread *td; struct label *execlabel; /* optional exec label */ struct vnode *vp; /* pointer to vnode of file to exec */ struct vm_object *object; /* The vm object for this vp */
