================================================================================ UBSAN: Undefined behaviour in fs/jfs/jfs_imap.c:458:7 shift exponent -1 is negative CPU: 1 PID: 24276 Comm: syz-executor.1 Not tainted 4.19.150-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 squashfs: SQUASHFS error: unable to read fragment index table Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 diReadSpecial.cold+0x1b/0x3e fs/jfs/jfs_imap.c:458 jfs_mount+0x83/0x3d0 fs/jfs/jfs_mount.c:98 jfs_fill_super+0x55c/0xb50 fs/jfs/super.c:589 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x318 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x51c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4608aa Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007f4dcdb58a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f4dcdb58b20 RCX: 00000000004608aa RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f4dcdb58ae0 RBP: 00007f4dcdb58ae0 R08: 00007f4dcdb58b20 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020061000 ================================================================================ EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 255001 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 327705 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated SQUASHFS error: zstd decompression error: 2 SQUASHFS error: zstd decompression failed, data probably corrupt SQUASHFS error: squashfs_read_data failed to read block 0x106 SQUASHFS error: Unable to read metadata cache entry [106] SQUASHFS error: Unable to read inode 0x11e EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated SQUASHFS error: zstd decompression error: 2 EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 size 11290111 extends beyond EOD, truncated SQUASHFS error: zstd decompression failed, data probably corrupt loop0: p2 start 327705 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated SQUASHFS error: squashfs_read_data failed to read block 0x106 loop0: p4 size 3657465856 extends beyond EOD, truncated SQUASHFS error: Unable to read metadata cache entry [106] netlink: 'syz-executor.2': attribute type 1 has an invalid length. SQUASHFS error: Unable to read inode 0x11e netlink: 'syz-executor.2': attribute type 1 has an invalid length. netlink: 'syz-executor.2': attribute type 1 has an invalid length. netlink: 'syz-executor.2': attribute type 1 has an invalid length. EXT4-fs (loop4): Invalid want_extra_isize 0 netlink: 'syz-executor.2': attribute type 1 has an invalid length. netlink: 'syz-executor.2': attribute type 1 has an invalid length. loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 393241 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated netlink: 'syz-executor.2': attribute type 1 has an invalid length. loop0: p4 size 3657465856 extends beyond EOD, truncated netlink: 'syz-executor.2': attribute type 1 has an invalid length. squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported nla_parse: 22 callbacks suppressed netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 393241 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated EXT4-fs (loop4): Invalid want_extra_isize 0 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported EXT4-fs (loop4): Invalid want_extra_isize 0 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 458777 is beyond EOD, truncated netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported ================================================================================ UBSAN: Undefined behaviour in fs/jfs/jfs_mount.c:385:25 shift exponent 63 is too large for 32-bit type 'int' CPU: 0 PID: 24597 Comm: syz-executor.1 Not tainted 4.19.150-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 chkSuper.cold+0x1e/0x98 fs/jfs/jfs_mount.c:385 jfs_mount+0x47/0x3d0 fs/jfs/jfs_mount.c:94 jfs_fill_super+0x55c/0xb50 fs/jfs/super.c:589 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x318 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x51c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4608aa Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007f4dcdb58a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f4dcdb58b20 RCX: 00000000004608aa RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f4dcdb58ae0 RBP: 00007f4dcdb58ae0 R08: 00007f4dcdb58b20 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020061000 ================================================================================ loop0: p1 p2 p3 p4 EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 458777 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported EXT4-fs (loop4): Invalid want_extra_isize 0 squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 589849 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated EXT4-fs (loop4): Invalid want_extra_isize 0 EXT4-fs (loop4): Invalid want_extra_isize 0 squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 655385 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported EXT4-fs (loop4): Invalid want_extra_isize 0 squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p2 start 655385 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 1639193 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated EXT4-fs (loop4): Invalid want_extra_isize 0 EXT4-fs (loop4): Invalid want_extra_isize 0 squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported loop0: p2 start 1835033 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p4 size 3657465856 extends beyond EOD, truncated squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported EXT4-fs (loop4): Invalid want_extra_isize 0 squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 2031641 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated EXT4-fs (loop4): Invalid want_extra_isize 0 EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 2031641 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported nla_parse: 56 callbacks suppressed netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. loop0: p2 start 2097177 is beyond EOD, truncated netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 2293785 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated EXT4-fs (loop4): Invalid want_extra_isize 0 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 4128793 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported EXT4-fs (loop4): Invalid want_extra_isize 0 squashfs: SQUASHFS error: Filesystem uses "unknown" compression. This is not supported EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 size 11290111 extends beyond EOD, truncated squashfs: SQUASHFS error: Filesystem uses "lzma" compression. This is not supported loop0: p2 start 4194329 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated __loop_clr_fd: partition scan of loop0 failed (rc=-16) EXT4-fs (loop4): Invalid want_extra_isize 0 squashfs: SQUASHFS error: Filesystem uses "lzma" compression. This is not supported print_req_error: I/O error, dev loop0, sector 18 print_req_error: I/O error, dev loop0, sector 18 buffer_io_error: 3 callbacks suppressed Buffer I/O error on dev loop0p1, logical block 4, async page read print_req_error: I/O error, dev loop0, sector 20 Buffer I/O error on dev loop0p1, logical block 5, async page read print_req_error: I/O error, dev loop0, sector 22 Buffer I/O error on dev loop0p1, logical block 6, async page read print_req_error: I/O error, dev loop0, sector 24 Buffer I/O error on dev loop0p1, logical block 7, async page read print_req_error: I/O error, dev loop0, sector 8 print_req_error: I/O error, dev loop0, sector 8 Buffer I/O error on dev loop0p4, logical block 1, async page read squashfs: SQUASHFS error: Filesystem uses "lzma" compression. This is not supported loop0: p1 p2 p3 p4 loop0: partition table partially beyond EOD, truncated EXT4-fs (loop4): Invalid want_extra_isize 0 loop0: p1 size 11290111 extends beyond EOD, truncated loop0: p2 start 4718617 is beyond EOD, truncated loop0: p3 start 4293001441 is beyond EOD, truncated loop0: p4 size 3657465856 extends beyond EOD, truncated