diff options
| author | Dmitry Vyukov <dvyukov@google.com> | 2019-02-07 18:40:59 +0100 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2019-02-08 09:29:15 +0100 |
| commit | 8c1621bedea53aa77ac39bbda26e86592d6dde5b (patch) | |
| tree | 53167c3ddd2c7ae3fcabb75dcc6316c236ec9718 /executor | |
| parent | aa4feb03290ee285b276e5a9c9abddd5296e79e0 (diff) | |
sys/linux: prohibit EXT4_IOC_RESIZE_FS
When we run with sandbox=none, test program can do EXT4_IOC_RESIZE_FS which
shrinks rootfs basically to 0. This breaks the machine as all tests then fail with:
failed to create temp dir: mkdir syzkaller-testdir077269498: no space left on device
This is the most common source of "lost connection" crashes overall and
they are not actually kernel bugs.
Prohibit EXT4_IOC_RESIZE_FS for now.
Alternatively we can mount tmpfs with sandbox=none.
Update #971
Diffstat (limited to 'executor')
| -rw-r--r-- | executor/defs.h | 10 | ||||
| -rw-r--r-- | executor/syscalls.h | 5 |
2 files changed, 5 insertions, 10 deletions
diff --git a/executor/defs.h b/executor/defs.h index f006107e0..72e9d8d57 100644 --- a/executor/defs.h +++ b/executor/defs.h @@ -60,7 +60,7 @@ #if GOARCH_386 #define GOARCH "386" -#define SYZ_REVISION "e55c1d4469260750efc083609d848c4225c9a24b" +#define SYZ_REVISION "0b986c85b5edbab89b58e44657e1e9a73e2db747" #define SYZ_EXECUTOR_USES_FORK_SERVER 1 #define SYZ_EXECUTOR_USES_SHMEM 1 #define SYZ_PAGE_SIZE 4096 @@ -70,7 +70,7 @@ #if GOARCH_amd64 #define GOARCH "amd64" -#define SYZ_REVISION "9d166e83d2dbb367024f73a14ca95d0030d8dc82" +#define SYZ_REVISION "0391b21ce7b59de5fdf2d83c1efe587f2c5458b7" #define SYZ_EXECUTOR_USES_FORK_SERVER 1 #define SYZ_EXECUTOR_USES_SHMEM 1 #define SYZ_PAGE_SIZE 4096 @@ -80,7 +80,7 @@ #if GOARCH_arm #define GOARCH "arm" -#define SYZ_REVISION "af32e4c48e665c44f07929273c6f263d9ae7fc71" +#define SYZ_REVISION "5551f204a00e09d3f78b5386baecb906605e24b7" #define SYZ_EXECUTOR_USES_FORK_SERVER 1 #define SYZ_EXECUTOR_USES_SHMEM 1 #define SYZ_PAGE_SIZE 4096 @@ -90,7 +90,7 @@ #if GOARCH_arm64 #define GOARCH "arm64" -#define SYZ_REVISION "65b47e2d00b30604ca983eeb49727ae7c7c4196b" +#define SYZ_REVISION "07762f923b682a64b4f4773195a4fb9789fc4f99" #define SYZ_EXECUTOR_USES_FORK_SERVER 1 #define SYZ_EXECUTOR_USES_SHMEM 1 #define SYZ_PAGE_SIZE 4096 @@ -100,7 +100,7 @@ #if GOARCH_ppc64le #define GOARCH "ppc64le" -#define SYZ_REVISION "0f3d834d62ad737fc1d8bec9eb141fe2bd715a25" +#define SYZ_REVISION "3bda989d8136fcb59fa73f0a90f6964dfbaa4297" #define SYZ_EXECUTOR_USES_FORK_SERVER 1 #define SYZ_EXECUTOR_USES_SHMEM 1 #define SYZ_PAGE_SIZE 4096 diff --git a/executor/syscalls.h b/executor/syscalls.h index a270584e0..4164be810 100644 --- a/executor/syscalls.h +++ b/executor/syscalls.h @@ -2138,7 +2138,6 @@ const call_t syscalls[] = { {"ioctl$EXT4_IOC_MIGRATE", 54}, {"ioctl$EXT4_IOC_MOVE_EXT", 54}, {"ioctl$EXT4_IOC_PRECACHE_EXTENTS", 54}, - {"ioctl$EXT4_IOC_RESIZE_FS", 54}, {"ioctl$EXT4_IOC_SETFLAGS", 54}, {"ioctl$EXT4_IOC_SWAP_BOOT", 54}, {"ioctl$FIBMAP", 54}, @@ -4713,7 +4712,6 @@ const call_t syscalls[] = { {"ioctl$EXT4_IOC_MIGRATE", 16}, {"ioctl$EXT4_IOC_MOVE_EXT", 16}, {"ioctl$EXT4_IOC_PRECACHE_EXTENTS", 16}, - {"ioctl$EXT4_IOC_RESIZE_FS", 16}, {"ioctl$EXT4_IOC_SETFLAGS", 16}, {"ioctl$EXT4_IOC_SWAP_BOOT", 16}, {"ioctl$FIBMAP", 16}, @@ -7281,7 +7279,6 @@ const call_t syscalls[] = { {"ioctl$EXT4_IOC_MIGRATE", 54}, {"ioctl$EXT4_IOC_MOVE_EXT", 54}, {"ioctl$EXT4_IOC_PRECACHE_EXTENTS", 54}, - {"ioctl$EXT4_IOC_RESIZE_FS", 54}, {"ioctl$EXT4_IOC_SETFLAGS", 54}, {"ioctl$EXT4_IOC_SWAP_BOOT", 54}, {"ioctl$FIBMAP", 54}, @@ -9802,7 +9799,6 @@ const call_t syscalls[] = { {"ioctl$EXT4_IOC_MIGRATE", 29}, {"ioctl$EXT4_IOC_MOVE_EXT", 29}, {"ioctl$EXT4_IOC_PRECACHE_EXTENTS", 29}, - {"ioctl$EXT4_IOC_RESIZE_FS", 29}, {"ioctl$EXT4_IOC_SETFLAGS", 29}, {"ioctl$EXT4_IOC_SWAP_BOOT", 29}, {"ioctl$FIBMAP", 29}, @@ -12316,7 +12312,6 @@ const call_t syscalls[] = { {"ioctl$EXT4_IOC_MIGRATE", 54}, {"ioctl$EXT4_IOC_MOVE_EXT", 54}, {"ioctl$EXT4_IOC_PRECACHE_EXTENTS", 54}, - {"ioctl$EXT4_IOC_RESIZE_FS", 54}, {"ioctl$EXT4_IOC_SETFLAGS", 54}, {"ioctl$EXT4_IOC_SWAP_BOOT", 54}, {"ioctl$FIBMAP", 54}, |