================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:622:9
index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]')
CPU: 1 PID: 13809 Comm: syz-executor.0 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:348
 xtInsert+0xd04/0xd70 fs/jfs/jfs_xtree.c:622
 extAlloc+0x87c/0xdec fs/jfs/jfs_extent.c:145
 jfs_get_block+0x340/0xb98 fs/jfs/inode.c:248
 __block_write_begin_int+0x46c/0x158c fs/buffer.c:2120
 __block_write_begin fs/buffer.c:2169 [inline]
 block_write_begin+0x98/0x11c fs/buffer.c:2228
 jfs_write_begin+0x44/0x88 fs/jfs/inode.c:299
 generic_perform_write+0x28c/0x588 mm/filemap.c:3969
 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4064
 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:4090
 __kernel_write_iter+0x264/0x620 fs/read_write.c:517
 dump_emit_page fs/coredump.c:888 [inline]
 dump_user_range+0x378/0x6b4 fs/coredump.c:915
 elf_core_dump+0x301c/0x3780 fs/binfmt_elf.c:2142
 do_coredump+0x1548/0x23f4 fs/coredump.c:764
 get_signal+0xfec/0x15ec kernel/signal.c:2878
 do_signal arch/arm64/kernel/signal.c:1249 [inline]
 do_notify_resume+0x328/0x393c arch/arm64/kernel/signal.c:1302
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline]
 el0_sp+0xa0/0x15c arch/arm64/kernel/entry-common.c:626
 el0t_64_sync_handler+0xd8/0xfc arch/arm64/kernel/entry-common.c:721
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:270:11
index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]')
CPU: 1 PID: 13809 Comm: syz-executor.0 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:348
 xtSearch+0xc94/0x156c fs/jfs/jfs_xtree.c:270
 xtLookup+0x230/0x710 fs/jfs/jfs_xtree.c:152
 extHint+0x200/0x544 fs/jfs/jfs_extent.c:215
 jfs_get_block+0x2e4/0xb98 fs/jfs/inode.c:246
 __block_write_begin_int+0x46c/0x158c fs/buffer.c:2120
 __block_write_begin fs/buffer.c:2169 [inline]
 block_write_begin+0x98/0x11c fs/buffer.c:2228
 jfs_write_begin+0x44/0x88 fs/jfs/inode.c:299
 generic_perform_write+0x28c/0x588 mm/filemap.c:3969
 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4064
 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:4090
 __kernel_write_iter+0x264/0x620 fs/read_write.c:517
 dump_emit_page fs/coredump.c:888 [inline]
 dump_user_range+0x378/0x6b4 fs/coredump.c:915
 elf_core_dump+0x301c/0x3780 fs/binfmt_elf.c:2142
 do_coredump+0x1548/0x23f4 fs/coredump.c:764
 get_signal+0xfec/0x15ec kernel/signal.c:2878
 do_signal arch/arm64/kernel/signal.c:1249 [inline]
 do_notify_resume+0x328/0x393c arch/arm64/kernel/signal.c:1302
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline]
 el0_sp+0xa0/0x15c arch/arm64/kernel/entry-common.c:626
 el0t_64_sync_handler+0xd8/0xfc arch/arm64/kernel/entry-common.c:721
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:179:9
index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]')
CPU: 0 PID: 13809 Comm: syz-executor.0 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:348
 xtLookup+0x70c/0x710 fs/jfs/jfs_xtree.c:179
 extHint+0x200/0x544 fs/jfs/jfs_extent.c:215
 jfs_get_block+0x2e4/0xb98 fs/jfs/inode.c:246
 __block_write_begin_int+0x46c/0x158c fs/buffer.c:2120
 __block_write_begin fs/buffer.c:2169 [inline]
 block_write_begin+0x98/0x11c fs/buffer.c:2228
 jfs_write_begin+0x44/0x88 fs/jfs/inode.c:299
 generic_perform_write+0x28c/0x588 mm/filemap.c:3969
 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4064
 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:4090
 __kernel_write_iter+0x264/0x620 fs/read_write.c:517
 dump_emit_page fs/coredump.c:888 [inline]
 dump_user_range+0x378/0x6b4 fs/coredump.c:915
 elf_core_dump+0x301c/0x3780 fs/binfmt_elf.c:2142
 do_coredump+0x1548/0x23f4 fs/coredump.c:764
 get_signal+0xfec/0x15ec kernel/signal.c:2878
 do_signal arch/arm64/kernel/signal.c:1249 [inline]
 do_notify_resume+0x328/0x393c arch/arm64/kernel/signal.c:1302
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline]
 el0_sp+0xa0/0x15c arch/arm64/kernel/entry-common.c:626
 el0t_64_sync_handler+0xd8/0xfc arch/arm64/kernel/entry-common.c:721
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
================================================================================
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:1370:9
index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]')
CPU: 0 PID: 13809 Comm: syz-executor.0 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:348
 xtExtend+0x10fc/0x1334 fs/jfs/jfs_xtree.c:1370
 extAlloc+0x84c/0xdec fs/jfs/jfs_extent.c:143
 jfs_get_block+0x340/0xb98 fs/jfs/inode.c:248
 __block_write_begin_int+0x46c/0x158c fs/buffer.c:2120
 __block_write_begin fs/buffer.c:2169 [inline]
 block_write_begin+0x98/0x11c fs/buffer.c:2228
 jfs_write_begin+0x44/0x88 fs/jfs/inode.c:299
 generic_perform_write+0x28c/0x588 mm/filemap.c:3969
 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4064
 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:4090
 __kernel_write_iter+0x264/0x620 fs/read_write.c:517
 dump_emit_page fs/coredump.c:888 [inline]
 dump_user_range+0x378/0x6b4 fs/coredump.c:915
 elf_core_dump+0x301c/0x3780 fs/binfmt_elf.c:2142
 do_coredump+0x1548/0x23f4 fs/coredump.c:764
 get_signal+0xfec/0x15ec kernel/signal.c:2878
 do_signal arch/arm64/kernel/signal.c:1249 [inline]
 do_notify_resume+0x328/0x393c arch/arm64/kernel/signal.c:1302
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline]
 el0_sp+0xa0/0x15c arch/arm64/kernel/entry-common.c:626
 el0t_64_sync_handler+0xd8/0xfc arch/arm64/kernel/entry-common.c:721
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
================================================================================