diff options
| author | Lennart Poettering <lennart@poettering.net> | 2016-01-26 19:02:12 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2016-01-27 02:21:28 +0100 |
| commit | a90fb858ac91de4c14c9b68da6060731954515b7 (patch) | |
| tree | 3e458d4a53d309c5cec38c16e9457f3969cf8ab2 /src/basic/btrfs-util.c | |
| parent | 05e8f270a9ca97e1014184df113494b143639fb8 (diff) | |
machined: add early checks for unrealistically large image/pool sizes
Diffstat (limited to 'src/basic/btrfs-util.c')
| -rw-r--r-- | src/basic/btrfs-util.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/basic/btrfs-util.c b/src/basic/btrfs-util.c index d07d1df5a8..03c7609c92 100644 --- a/src/basic/btrfs-util.c +++ b/src/basic/btrfs-util.c @@ -43,6 +43,7 @@ #include "copy.h" #include "fd-util.h" #include "fileio.h" +#include "io-util.h" #include "macro.h" #include "missing.h" #include "path-util.h" @@ -913,6 +914,10 @@ int btrfs_resize_loopback_fd(int fd, uint64_t new_size, bool grow_only) { dev_t dev = 0; int r; + /* In contrast to btrfs quota ioctls ftruncate() cannot make sense of "infinity" or file sizes > 2^31 */ + if (!FILE_SIZE_VALID(new_size)) + return -EINVAL; + /* btrfs cannot handle file systems < 16M, hence use this as minimum */ if (new_size < 16*1024*1024) new_size = 16*1024*1024; |