Nageswara R Sastry wrote: > Hi, > > While working with fsfuzz ecryptfs got the following Kernel panic with > oops. > > Kernel Version: 2.6.30 > Architecture : s390 > > /var/log/messages > > root: ./run_test ecryptfs 62 > kernel: attempt to access beyond end of device > kernel: loop1: rw=0, want=109053400, limit=40960 > kernel: attempt to access beyond end of device > kernel: loop1: rw=0, want=93744, limit=40960 > kernel: kjournald starting. Commit interval 5 seconds > kernel: EXT3 FS on loop1, internal journal > kernel: EXT3-fs: recovery complete. > kernel: EXT3-fs: mounted filesystem with writeback data mode. > kernel: EXT3-fs error (device loop1): htree_dirblock_to_tree: bad entry > in directory #2: inode out of bounds - offset=44, inode=36364, > rec_len=20, name_len=10 > kernel: EXT3-fs error (device loop1): htree_dirblock_to_tree: bad entry > in directory #2: inode out of bounds - offset=44, inode=36364, > rec_len=20, name_len=10 > kernel: EXT3-fs error (device loop1): ext3_valid_block_bitmap: Invalid > block bitmap - block_group = 0, block = 5 > kernel: EXT3-fs error (device loop1): ext3_add_entry: bad entry in > directory #2: inode out of bounds - offset=44, inode=36364, rec_len=20, > name_len=10 > kernel: ecryptfs_do_create: Failure to create dentry in lower fs; rc = [-5] > kernel: ecryptfs_create: Failed to create file inlower filesystem > kernel: EXT3-fs error (device loop1): ext3_add_entry: bad entry in > directory #2: inode out of bounds - offset=44, inode=36364, rec_len=20, > name_len=10 > kernel: EXT3-fs error (device loop1): ext3_add_entry: bad entry in > directory #2: inode out of bounds - offset=44, inode=36364, rec_len=20, > name_len=10 > kernel: EXT3-fs error (device loop1): ext3_new_block: Allocating block > in system zone - blocks from 40, length 1 > kernel: EXT3-fs error (device loop1): ext3_new_block: Allocating block > in system zone - blocks from 43, length 1 > kernel: EXT3-fs error (device loop1): ext3_new_block: Allocating block > in system zone - blocks from 44, length 1 > kernel: EXT3-fs error (device loop1): ext3_new_block: Allocating block > in system zone - blocks from 46, length 1 > kernel: EXT3-fs error (device loop1): ext3_add_entry: bad entry in > directory #2: inode out of bounds - offset=44, inode=36364, rec_len=20, > name_len=10 > kernel: ecryptfs_do_create: Failure to create dentry in lower fs; rc = [-5] > kernel: ecryptfs_create: Failed to create file inlower filesystem > kernel: SELinux: Context root:objùct_r:file_t:s0 is not valid (left > unmapped). > kernel: ecryptfs_cipher_code_to_string: Cipher code not recognized: [123] > kernel: ecryptfs_init_crypt_ctx: cryptfs: init_crypt_ctx(): Error > initializing cipher [] > kernel: Unrecognizable packet > kernel: ecryptfs_parse_packet_set: No valid (ecryptfs-specific) literal > packet containing authentication token signature found after tag 3 packet > kernel: Either the lower file is not in a valid eCryptfs format, or the > key could not be retrieved. Plaintext passthrough mode is not enabled; > returning -EIO > kernel: EXT3-fs error (device loop1): htree_dirblock_to_tree: bad entry > in directory #2: inode out of bounds - offset=44, inode=36364, > rec_len=20, name_len=10 > kernel: EXT3-fs error (device loop1): ext3_add_entry: bad entry in > directory #2: inode out of bounds - offset=44, inode=36364, rec_len=20, > name_len=10 > kernel: EXT3-fs error (device loop1): ext3_add_entry: bad entry in > directory #2: inode out of bounds - offset=44, inode=36364, rec_len=20, > name_len=10 > kernel: ecryptfs_do_create: Failure to create dentry in lower fs; rc = [-5] > kernel: ecryptfs_create: Failed to create file inlower filesystem > kernel: Unable to handle kernel pointer dereference at virtual kernel > address 038003e03ffff000 > kernel: Oops: 0038 [#1] SMP > kernel: Modules linked in: cbc md5 aes_s390 aes_generic ecb ecryptfs > loop qeth_l3 autofs4 lockd sunrpc iptable_filter ip_tables ip6t_REJECT > xt_tcpudp ip6table_filter ip6_tables x_tables ipv6 qeth_l2 qeth qdio > ccwgroup vmur dm_round_robin dm_multipath scsi_dh sd_mod scsi_mod > multipath dm_snapshot dm_zero dm_mirror dm_region_hash dm_log dm_mod > dasd_fba_mod dasd_eckd_mod dasd_mod ext3 jbd > kernel: CPU: 0 Not tainted 2.6.30 #3 > kernel: Process umount (pid: 4682, task: 0000000035b2d750, ksp: > 00000000352e38d0) > kernel: Krnl PSW : 0704200180000000 00000000000cfc44 (ksize+0x40/0x94) > kernel: R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3 > kernel: Krnl GPRS: 0000000000000000 038003e03fffffce fffffffffffffffe > 038003e03fffffc8 > kernel: 000003e000000001 00000000002d6f60 000000003537bbc0 > 0000000000000000 > kernel: 0000000000000000 000000003e957800 fffffffffffffffe > 0000000000000000 > kernel: fffffffffffffffe 00000000002ea818 000000000019590a > 00000000352e3c78 > kernel: Krnl Code: 00000000000cfc34: b9040031 lgr %r3,%r1 > kernel: 00000000000cfc38: e31050080008 ag %r1,8(%r5) > kernel: 00000000000cfc3e: e33050000008 ag %r3,0(%r5) > umount.ecryptfs: Failed to find key with sig [253ca7e88811d184]: > Required key not available > kernel: >00000000000cfc44: e31010000090 llgc %r1,0(%r1) > kernel: 00000000000cfc4a: 54105010 n %r1,16(%r5) > kernel: 00000000000cfc4e: 1211 ltr %r1,%r1 > kernel: 00000000000cfc50: a7840005 brc 8,cfc5a > umount.ecryptfs: Failed to find key with sig [253ca7e88811d184]: > Required key not available > kernel: 00000000000cfc54: e33030100004 lg %r3,16(%r3) > kernel: Call Trace: > kernel: ([<00000000000ea09e>] dput+0x3e/0x1b4) > umount.ecryptfs: Failed to find key with sig [253ca7e88811d184]: > Required key not available > kernel: [<000003e0009bbfd2>] ecryptfs_destroy_crypt_stat+0x46/0xe0 > [ecryptfs] > kernel: [<000003e0009b84ca>] ecryptfs_destroy_inode+0x102/0x120 [ecryptfs] > kernel: [<00000000000eaa46>] shrink_dcache_for_umount_subtree+0x27a/0x2e8 > kernel: [<00000000000eb60a>] shrink_dcache_for_umount+0x76/0x94 > umount.ecryptfs: Failed to find key with sig [253ca7e88811d184]: > Required key not available > kernel: [<00000000000d954c>] generic_shutdown_super+0x3c/0x12c > kernel: [<00000000000d9b34>] deactivate_super+0xa0/0xc8 > kernel: [<00000000000f2984>] SyS_umount+0x330/0x390 > kernel: [<0000000000026092>] sysc_tracego+0xe/0x14 > umount.ecryptfs: Failed to find key with sig [253ca7e88811d184]: > Required key not available > kernel: [<000000498d9b1eca>] 0x498d9b1eca > kernel: Last Breaking-Event-Address: > kernel: [<00000000000cfc1e>] ksize+0x1a/0x94 > kernel: <4>---[ end trace 663e2f0f40f97f3f ]--- > umount.ecryptfs: Failed to find key with sig [253ca7e88811d184]: > Required key not available > > > Regards > R.Nageswara Sastry >
Thanks for testing eCryptfs and reporting this bug, Nageswara! I've filed a bug in our tracker at https://bugs.launchpad.net/ecryptfs/+bug/394136 Tyler
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