https://github.com/torvalds/linux
Revision 38e3eaeedcac75360af8a92e7b66956ec4f334e5 authored by Tyler Hicks on 03 November 2009, 20:56:06 UTC, committed by Tyler Hicks on 20 January 2010, 04:32:11 UTC
Adrian reported that mkfontscale didn't work inside of eCryptfs mounts.
Strace revealed the following:
open("./", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3
fcntl64(3, F_GETFD) = 0x1 (flags FD_CLOEXEC)
open("./fonts.scale", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 4
getdents(3, /* 80 entries */, 32768) = 2304
open("./.", O_RDONLY) = 5
fcntl64(5, F_SETFD, FD_CLOEXEC) = 0
fstat64(5, {st_mode=S_IFDIR|0755, st_size=16384, ...}) = 0
mmap2(NULL, 16384, PROT_READ, MAP_PRIVATE, 5, 0) = 0xb7fcf000
close(5) = 0
--- SIGBUS (Bus error) @ 0 (0) ---
+++ killed by SIGBUS +++
The mmap2() on a directory was successful, resulting in a SIGBUS
signal later. This patch removes mmap() from the list of possible
ecryptfs_dir_fops so that mmap() isn't possible on eCryptfs directory
files.
https://bugs.launchpad.net/ecryptfs/+bug/400443
Reported-by: Adrian C. <anrxc@sysphere.org>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
1 parent f8f484d
Tip revision: 38e3eaeedcac75360af8a92e7b66956ec4f334e5 authored by Tyler Hicks on 03 November 2009, 20:56:06 UTC
eCryptfs: Remove mmap from directory operations
eCryptfs: Remove mmap from directory operations
Tip revision: 38e3eae
| File | Mode | Size |
|---|---|---|
| basic | ||
| dtc | ||
| genksyms | ||
| kconfig | ||
| ksymoops | ||
| mod | ||
| package | ||
| rt-tester | ||
| selinux | ||
| tracing | ||
| .gitignore | -rw-r--r-- | 85 bytes |
| Kbuild.include | -rw-r--r-- | 9.5 KB |
| Lindent | -rwxr-xr-x | 460 bytes |
| Makefile | -rw-r--r-- | 934 bytes |
| Makefile.build | -rw-r--r-- | 11.9 KB |
| Makefile.clean | -rw-r--r-- | 3.2 KB |
| Makefile.fwinst | -rw-r--r-- | 2.0 KB |
| Makefile.headersinst | -rw-r--r-- | 3.3 KB |
| Makefile.host | -rw-r--r-- | 6.5 KB |
| Makefile.lib | -rw-r--r-- | 9.0 KB |
| Makefile.modbuiltin | -rw-r--r-- | 1.7 KB |
| Makefile.modinst | -rw-r--r-- | 1.0 KB |
| Makefile.modpost | -rw-r--r-- | 5.0 KB |
| bin2c.c | -rw-r--r-- | 702 bytes |
| binoffset.c | -rw-r--r-- | 3.9 KB |
| bloat-o-meter | -rwxr-xr-x | 1.7 KB |
| bootgraph.pl | -rw-r--r-- | 5.6 KB |
| checkincludes.pl | -rwxr-xr-x | 1.7 KB |
| checkkconfigsymbols.sh | -rwxr-xr-x | 1.8 KB |
| checkpatch.pl | -rwxr-xr-x | 71.9 KB |
| checkstack.pl | -rwxr-xr-x | 5.2 KB |
| checksyscalls.sh | -rwxr-xr-x | 5.5 KB |
| checkversion.pl | -rwxr-xr-x | 1.8 KB |
| cleanfile | -rwxr-xr-x | 3.4 KB |
| cleanpatch | -rwxr-xr-x | 5.0 KB |
| config | -rwxr-xr-x | 2.6 KB |
| conmakehash.c | -rw-r--r-- | 6.0 KB |
| decodecode | -rwxr-xr-x | 1.7 KB |
| diffconfig | -rwxr-xr-x | 3.6 KB |
| export_report.pl | -rw-r--r-- | 4.2 KB |
| extract-ikconfig | -rwxr-xr-x | 1.9 KB |
| gcc-version.sh | -rw-r--r-- | 819 bytes |
| gcc-x86_32-has-stack-protector.sh | -rw-r--r-- | 183 bytes |
| gcc-x86_64-has-stack-protector.sh | -rw-r--r-- | 199 bytes |
| gen_initramfs_list.sh | -rw-r--r-- | 7.0 KB |
| get_maintainer.pl | -rwxr-xr-x | 29.6 KB |
| gfp-translate | -rw-r--r-- | 1.5 KB |
| headerdep.pl | -rwxr-xr-x | 3.5 KB |
| headers.sh | -rwxr-xr-x | 512 bytes |
| headers_check.pl | -rw-r--r-- | 2.7 KB |
| headers_install.pl | -rw-r--r-- | 1.5 KB |
| kallsyms.c | -rw-r--r-- | 15.1 KB |
| kernel-doc | -rwxr-xr-x | 61.1 KB |
| makelst | -rwxr-xr-x | 773 bytes |
| markup_oops.pl | -rw-r--r-- | 7.5 KB |
| mkcompile_h | -rwxr-xr-x | 2.6 KB |
| mkmakefile | -rw-r--r-- | 1.1 KB |
| mksysmap | -rw-r--r-- | 1.3 KB |
| mkuboot.sh | -rwxr-xr-x | 379 bytes |
| mkversion | -rw-r--r-- | 74 bytes |
| module-common.lds | -rw-r--r-- | 210 bytes |
| namespace.pl | -rwxr-xr-x | 13.1 KB |
| patch-kernel | -rwxr-xr-x | 9.8 KB |
| pnmtologo.c | -rw-r--r-- | 11.7 KB |
| profile2linkerlist.pl | -rw-r--r-- | 378 bytes |
| recordmcount.pl | -rwxr-xr-x | 17.1 KB |
| setlocalversion | -rwxr-xr-x | 2.0 KB |
| show_delta | -rwxr-xr-x | 3.0 KB |
| tags.sh | -rwxr-xr-x | 4.2 KB |
| unifdef.c | -rw-r--r-- | 31.6 KB |
| ver_linux | -rwxr-xr-x | 3.1 KB |
Computing file changes ...
