IPv6 header not found IPv6 header not found IPv6 header not found IPVS: length: 194 != 24 ================================================================== BUG: KASAN: slab-out-of-bounds in tgr192_final+0x4fe/0x560 crypto/tgr192.c:604 Write of size 8 at addr ffff8801d6f5a8a0 by task syz-executor6/26315 CPU: 1 PID: 26315 Comm: syz-executor6 Not tainted 4.17.0+ #121 IPv6 header not found 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+0x1b9/0x294 lib/dump_stack.c:113 IPv6 header not found print_address_description+0x6c/0x20b mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 __asan_report_store8_noabort+0x17/0x20 mm/kasan/report.c:438 tgr192_final+0x4fe/0x560 crypto/tgr192.c:604 IPv6 header not found crypto_shash_final+0x104/0x260 crypto/shash.c:152 kdf_ctr security/keys/dh.c:186 [inline] keyctl_dh_compute_kdf security/keys/dh.c:217 [inline] __keyctl_dh_compute+0x1184/0x1bc0 security/keys/dh.c:389 IPv6 header not found compat_keyctl_dh_compute+0x2c8/0x3e0 security/keys/compat_dh.c:39 __do_compat_sys_keyctl security/keys/compat.c:136 [inline] __se_compat_sys_keyctl security/keys/compat.c:59 [inline] __ia32_compat_sys_keyctl+0x137/0x3b0 security/keys/compat.c:59 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x345/0xf9b arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f25cb9 Code: 55 08 8b 88 64 cd ff ff 8b 98 68 cd ff ff 89 c8 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 1c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5f210ac EFLAGS: 00000282 ORIG_RAX: 0000000000000120 RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 0000000020000100 RDX: 0000000020a53ffb RSI: 000000000000008b RDI: 0000000020000140 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 26315: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553 __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x14e/0x760 mm/slab.c:3727 kmalloc include/linux/slab.h:518 [inline] keyctl_dh_compute_kdf security/keys/dh.c:211 [inline] __keyctl_dh_compute+0xfe9/0x1bc0 security/keys/dh.c:389 compat_keyctl_dh_compute+0x2c8/0x3e0 security/keys/compat_dh.c:39 __do_compat_sys_keyctl security/keys/compat.c:136 [inline] __se_compat_sys_keyctl security/keys/compat.c:59 [inline] __ia32_compat_sys_keyctl+0x137/0x3b0 security/keys/compat.c:59 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x345/0xf9b arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 Freed by task 23582: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kfree+0xd9/0x260 mm/slab.c:3813 ext4_ext_map_blocks+0xec9/0x6270 fs/ext4/extents.c:4601 ext4_map_blocks+0x8d9/0x1b40 fs/ext4/inode.c:636 ext4_alloc_file_blocks+0x30d/0xad0 fs/ext4/extents.c:4688 ext4_fallocate+0x9cf/0x2300 fs/ext4/extents.c:4966 vfs_fallocate+0x4b4/0x8d0 fs/open.c:319 ioctl_preallocate+0x1c2/0x2e0 fs/ioctl.c:481 compat_ioctl_preallocate+0x859/0x9e0 fs/compat_ioctl.c:716 __do_compat_sys_ioctl fs/compat_ioctl.c:1435 [inline] __se_compat_sys_ioctl fs/compat_ioctl.c:1405 [inline] __ia32_compat_sys_ioctl+0x14b/0x640 fs/compat_ioctl.c:1405 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x345/0xf9b arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 The buggy address belongs to the object at ffff8801d6f5a800 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 160 bytes inside of 192-byte region [ffff8801d6f5a800, ffff8801d6f5a8c0) The buggy address belongs to the page: page:ffffea00075bd680 count:1 mapcount:0 mapping:ffff8801da800040 index:0xffff8801d6f5a900 flags: 0x2fffc0000000100(slab) raw: 02fffc0000000100 ffffea0006fbc488 ffffea0006beea08 ffff8801da800040 raw: ffff8801d6f5a900 ffff8801d6f5a000 000000010000000e 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801d6f5a780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8801d6f5a800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8801d6f5a880: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8801d6f5a900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8801d6f5a980: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ==================================================================