Bug 808421
| Summary: | Segfault in ext2fs_new_inode | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Richard W.M. Jones <rjones> |
| Component: | e2fsprogs | Assignee: | Eric Sandeen <esandeen> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | rawhide | CC: | esandeen, josef, kzak, oliver |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | e2fsprogs-1.42.2-4 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-07-06 20:40:00 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
I started a thread on the linux-ext4 mailing list: http://thread.gmane.org/gmane.comp.file-systems.ext4/31736 I found a workaround (or fix??) and pushed it upstream in febootstrap: https://github.com/libguestfs/febootstrap/commit/386b5985098fedf7bcd111553b8b6b73599df6c9 Fixed since: * Mon Apr 09 2012 Eric Sandeen <sandeen@@redhat.com> 1.42.2-4 - Handle 32-bit bitmaps in new find_first_zero functions |
Description of problem: febootstrap uses ext2fs as a library to build ext2 filesystems. Since the latest version in Fedora, febootstrap now segfaults when calling ext2_mkdir. Version-Release number of selected component (if applicable): e2fsprogs-1.42.2-3.fc18.x86_64 How reproducible: 100% Steps to Reproduce: febootstrap-supermin-helper --verbose -f ext2 /usr/lib64/guestfs/supermin.d x86_64 /tmp/kernel /tmp/initrd /tmp/root Actual results: Program received signal SIGSEGV, Segmentation fault. ext2fs_find_first_zero_generic_bmap (bitmap=0x70b990, start=11, end=8193, out=0x7fffffffc608) at gen_bitmap64.c:771 771 if (bitmap->bitmap_ops->find_first_zero) Missing separate debuginfos, use: debuginfo-install glibc-2.15-28.fc17.x86_64 (gdb) bt #0 ext2fs_find_first_zero_generic_bmap (bitmap=0x70b990, start=11, end=8193, out=0x7fffffffc608) at gen_bitmap64.c:771 #1 0x00007ffff7da1878 in ext2fs_find_first_zero_inode_bitmap2 ( out=<synthetic pointer>, end=8193, start=11, bitmap=0x70b990) at ../../lib/ext2fs/bitops.h:630 #2 ext2fs_new_inode (fs=0x70b780, dir=dir@entry=2, mode=mode@entry=16877, map=0x70b990, map@entry=0x0, ret=ret@entry=0x7fffffffc65c) at alloc.c:146 #3 0x00000000004040be in ext2_mkdir (dir_ino=2, dirname=dirname@entry=0x7fffffffc758 "bin", basename=basename@entry=0x7fffffffc758 "bin", mode=mode@entry=16877, uid=500, gid=500, ctime=1333039498, atime=1333039498, mtime=1333039498) at ext2.c:142 #4 0x0000000000405664 in read_file () at ext2cpio.c:268 #5 0x00000000004059e5 in parse_next_entry () at ext2cpio.c:123 #6 ext2_cpio_file (cpio_file=<optimized out>) at ext2cpio.c:72 #7 0x0000000000402f6f in iterate_inputs (inputs=inputs@entry=0x7fffffffcab0, nr_inputs=nr_inputs@entry=1, writer=writer@entry=0x60fe00) at appliance.c:114 #8 0x00000000004030e1 in iterate_input_directory (dirname=<optimized out>, dirfd=dirfd@entry=8, writer=writer@entry=0x60fe00) at appliance.c:188 #9 0x0000000000402efe in iterate_inputs (inputs=inputs@entry=0x7fffffffded0, nr_inputs=nr_inputs@entry=1, writer=writer@entry=0x60fe00) at appliance.c:108 #10 0x0000000000403212 in create_appliance ( hostcpu=hostcpu@entry=0x7fffffffe2bc "x86_64", inputs=inputs@entry=0x7fffffffded0, nr_inputs=nr_inputs@entry=1, whitelist=whitelist@entry=0x0, modpath=0x6e65c0 "/lib/modules/3.3.0-1.fc17.x86_64", initrd=initrd@entry=0x7fffffffe2cf "/tmp/initrd", appliance=appliance@entry=0x7fffffffe2db "/tmp/root", writer=writer@entry=0x60fe00) at appliance.c:78 #11 0x000000000040295e in main (argc=<optimized out>, argv=<optimized out>) at main.c:316 (gdb) print bitmap $1 = (struct ext2fs_struct_generic_bitmap *) 0x70b990 (gdb) print *bitmap $2 = {magic = 2133571337, fs = 0x70b780, bitmap_ops = 0x4000000000001, flags = 262144, start = 7386736, end = 7630864, real_end = 2133571376, cluster_bits = -1239742424, description = 0x0, private = 0x0, base_error_code = 0, stats = {type = 81, created = {tv_sec = 226393524216, tv_usec = 226393524216}}} Notice that bitmap->bitmap_ops seems bogus.