diff options
Diffstat (limited to 'executor')
| -rw-r--r-- | executor/common_linux.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/executor/common_linux.h b/executor/common_linux.h index aab854d1c..2a1d14e2b 100644 --- a/executor/common_linux.h +++ b/executor/common_linux.h @@ -1734,6 +1734,7 @@ static int do_sandbox_namespace(void) #if SYZ_EXECUTOR || SYZ_REPEAT && SYZ_USE_TMP_DIR #include <dirent.h> #include <errno.h> +#include <linux/fs.h> #include <string.h> #include <sys/mount.h> @@ -1783,6 +1784,17 @@ retry: debug("unlink(%s)\n", filename); if (unlink(filename) == 0) break; + if (errno == EPERM) { + // Try to reset FS_XFLAG_IMMUTABLE. + int fd = open(filename, O_RDONLY); + if (fd != -1) { + struct fsxattr attr = {0}; + if (ioctl(fd, FS_IOC_FSSETXATTR, &attr) == 0) + debug("reset FS_XFLAG_IMMUTABLE\n"); + close(fd); + continue; + } + } if (errno == EROFS) { debug("ignoring EROFS\n"); break; |