https://bugzilla.kernel.org/show_bug.cgi?id=34372 Summary: Error-valued pointer used in pointer arithmetic Product: File System Version: 2.5 Kernel Version: 2.6.38.3 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ReiserFS AssignedTo: reiserfs-devel@xxxxxxxxxxxxxxx ReportedBy: crubio@xxxxxxxxxxx Regression: No We have statically analyzed ReiserFS, VFS and the memory management module to find error-valued pointers that are used in pointer arithmetic. We have found one instance: include/linux/reiserfs_fs.h:390: Using variable REISERFS_I#__mptr in pointer arithmetic, which may contain one of the following error codes: ENOMEM* Here is a sample trace that illustrates how this might happen: Complete sample trace ===================== include/linux/err.h:24: an unchecked error may be returned fs/reiserfs/inode.c:1515:"cabs2cil_" receives an error from function "ERR_PTR" fs/reiserfs/inode.c:1515:"tmp___11" receives an error from "cabs2cil_" fs/reiserfs/inode.c:1515:"tmp___11" may have an unchecked error fs/reiserfs/inode.c:1515:"tmp" receives an error from "tmp___11" fs/reiserfs/inode.c:1515:"tmp" may have an unchecked error fs/reiserfs/inode.c:1515:"tmp___7" receives an error from "tmp" fs/reiserfs/inode.c:1515:"tmp___7" may have an unchecked error fs/reiserfs/inode.c:1515: an unchecked error may be returned fs/reiserfs/super.c:239:"inode" receives an error from function "reiserfs_iget" fs/reiserfs/super.c:240:"inode" may have an unchecked error fs/reiserfs/super.c:249:"inode" may have an unchecked error fs/reiserfs/super.c:257:"inode" may have an unchecked error fs/reiserfs/super.c:259:"inode" may have an unchecked error fs/reiserfs/super.c:274:"inode" may have an unchecked error fs/reiserfs/super.c:287:"inode" may have an unchecked error fs/reiserfs/super.c:289:"inode" may have an unchecked error fs/reiserfs/super.c:290:"inode" may have an unchecked error fs/reiserfs/super.c:292:"inode" may have an unchecked error include/linux/reiserfs_fs.h:390:"__mptr" receives an error from "inode" include/linux/reiserfs_fs.h:390:"__mptr" may have an unchecked error include/linux/reiserfs_fs.h:390: Using variable REISERFS_I#__mptr in pointer arithmetic, which may contain one of the following error codes: ENOMEM* Slice (summary of the above sample trace only including relevant program points) ===== include/linux/err.h:24: an unchecked error may be returned fs/reiserfs/inode.c:1515:"cabs2cil_" receives an error from function "ERR_PTR" fs/reiserfs/inode.c:1515:"tmp___11" receives an error from "cabs2cil_" fs/reiserfs/inode.c:1515:"tmp" receives an error from "tmp___11" fs/reiserfs/inode.c:1515:"tmp___7" receives an error from "tmp" fs/reiserfs/inode.c:1515: an unchecked error may be returned fs/reiserfs/super.c:239:"inode" receives an error from function "reiserfs_iget" fs/reiserfs/super.c:292:"inode" may have an unchecked error include/linux/reiserfs_fs.h:390:"__mptr" receives an error from "inode" include/linux/reiserfs_fs.h:390: Using variable REISERFS_I#__mptr in pointer arithmetic, which may contain one of the following error codes: ENOMEM* -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
