Applied, thanks! Damien Zammit via Bug reports for the GNU Hurd, le sam. 28 déc. 2024 07:35:52 +0000, a ecrit: > Proxied memory was not rounded up to page size, causing > error with vm_map'ing the underlying memory. > > WARNING: Assumes pci memory resources are at least page aligned. > If not, this will expose part of next resource to userspace. > > --- > pci-arbiter/netfs_impl.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/pci-arbiter/netfs_impl.c b/pci-arbiter/netfs_impl.c > index 4bb5c97a..82e618a7 100644 > --- a/pci-arbiter/netfs_impl.c > +++ b/pci-arbiter/netfs_impl.c > @@ -577,6 +577,7 @@ get_filemap_region (struct node *node, vm_prot_t prot) > vm_prot_t max_prot; > size_t reg_num; > struct pci_mem_region *region; > + size_t rounded_size; > > /* Get region info */ > reg_num = > @@ -592,12 +593,17 @@ get_filemap_region (struct node *node, vm_prot_t prot) > if (err) > goto error; > > + /* WARNING: this rounds up the proxied region to a whole page. > + * This may be a security risk, but is the only way to provide access > + * to the final page of the memory region */ > + rounded_size = round_page (region->size); > + > /* Create a new memory object proxy with the required protection */ > max_prot = (VM_PROT_READ | VM_PROT_WRITE) & prot; > err = > vm_region_create_proxy (mach_task_self (), > (vm_address_t) node->nn->ln->region_maps[reg_num], > - max_prot, region->size, &proxy); > + max_prot, rounded_size, &proxy); > if (err) > goto error; > > -- > 2.45.2 > > >
-- Samuel ... <rv_> et Ctrl alt F2 pour aller sous console <rv_> mais c koi pour passer d'un bureau a un autre ! <rv_> au fait c koi le raccourci pour passer d'un bureau a un autre 'question stupide" <cycyx> ça dépend du window manager et de ta conf <Firebird> ce qui fonctionne toujours c'est CTRL-ALT-BCKSP -:- SignOff rv_: #linuxfr (Read error: EOF from client) -:- rv_ [~rv@217.11.166.169] has joined #linuxfr <rv_> Firebird: MEURT...
