Warning: Permanently added '10.128.1.119' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 29.351108] ================================================================== [ 29.358540] BUG: KASAN: use-after-free in __list_add_valid+0x93/0xa0 [ 29.365005] Read of size 8 at addr ffff88809ca0b858 by task syz-executor272/8474 [ 29.372509] [ 29.374119] CPU: 0 PID: 8474 Comm: syz-executor272 Not tainted 4.14.294-syzkaller #0 [ 29.381970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 29.391302] Call Trace: [ 29.393868] dump_stack+0x1b2/0x281 [ 29.397473] print_address_description.cold+0x54/0x1d3 [ 29.402724] kasan_report_error.cold+0x8a/0x191 [ 29.407367] ? __list_add_valid+0x93/0xa0 [ 29.411488] __asan_report_load8_noabort+0x68/0x70 [ 29.416394] ? __list_add_valid+0x93/0xa0 [ 29.420515] __list_add_valid+0x93/0xa0 [ 29.424464] rdma_listen+0x656/0x9b0 [ 29.428157] ucma_listen+0x10b/0x170 [ 29.431845] ? ucma_bind_ip+0x150/0x150 [ 29.435810] ? _copy_from_user+0x96/0x100 [ 29.439938] ? ucma_bind_ip+0x150/0x150 [ 29.443885] ucma_write+0x206/0x2c0 [ 29.447488] ? ucma_set_ib_path+0x510/0x510 [ 29.451791] __vfs_write+0xe4/0x630 [ 29.455393] ? ucma_set_ib_path+0x510/0x510 [ 29.459704] ? kernel_read+0x110/0x110 [ 29.463582] ? common_file_perm+0x3ee/0x580 [ 29.467887] ? security_file_permission+0x82/0x1e0 [ 29.472794] ? rw_verify_area+0xe1/0x2a0 [ 29.476830] vfs_write+0x17f/0x4d0 [ 29.480349] SyS_write+0xf2/0x210 [ 29.483784] ? SyS_read+0x210/0x210 [ 29.487391] ? do_syscall_64+0x4c/0x640 [ 29.491340] ? SyS_read+0x210/0x210 [ 29.494941] do_syscall_64+0x1d5/0x640 [ 29.498812] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.503974] RIP: 0033:0x7f2fb883aa79 [ 29.507674] RSP: 002b:00007f2fb87cb318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 29.515373] RAX: ffffffffffffffda RBX: 00007f2fb88c2418 RCX: 00007f2fb883aa79 [ 29.522627] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 [ 29.529876] RBP: 00007f2fb88c2410 R08: 00007f2fb87cb700 R09: 0000000000000000 [ 29.537141] R10: 00007f2fb87cb700 R11: 0000000000000246 R12: 006d635f616d6472 [ 29.544390] R13: 00007ffd13dc321f R14: 00007f2fb87cb400 R15: 0000000000022000 [ 29.551649] [ 29.553249] Allocated by task 8468: [ 29.556853] kasan_kmalloc+0xeb/0x160 [ 29.560635] kmem_cache_alloc_trace+0x131/0x3d0 [ 29.565278] rdma_create_id+0x57/0x4c0 [ 29.569140] ucma_create_id+0x18b/0x500 [ 29.573087] ucma_write+0x206/0x2c0 [ 29.576699] __vfs_write+0xe4/0x630 [ 29.580299] vfs_write+0x17f/0x4d0 [ 29.583811] SyS_write+0xf2/0x210 [ 29.587239] do_syscall_64+0x1d5/0x640 [ 29.591119] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.596280] [ 29.597881] Freed by task 8470: [ 29.601134] kasan_slab_free+0xc3/0x1a0 [ 29.605083] kfree+0xc9/0x250 [ 29.608160] ucma_close+0x11a/0x340 [ 29.611761] __fput+0x25f/0x7a0 [ 29.615014] task_work_run+0x11f/0x190 [ 29.618875] do_exit+0xa44/0x2850 [ 29.622314] do_group_exit+0x100/0x2e0 [ 29.626175] get_signal+0x38d/0x1ca0 [ 29.629863] do_signal+0x7c/0x1550 [ 29.633377] exit_to_usermode_loop+0x160/0x200 [ 29.638019] do_syscall_64+0x4a3/0x640 [ 29.641879] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.647038] [ 29.648655] The buggy address belongs to the object at ffff88809ca0b680 [ 29.648655] which belongs to the cache kmalloc-1024 of size 1024 [ 29.661458] The buggy address is located 472 bytes inside of [ 29.661458] 1024-byte region [ffff88809ca0b680, ffff88809ca0ba80) [ 29.673392] The buggy address belongs to the page: [ 29.678297] page:ffffea0002728280 count:1 mapcount:0 mapping:ffff88809ca0a000 index:0x0 compound_mapcount: 0 [ 29.688237] flags: 0xfff00000008100(slab|head) [ 29.692793] raw: 00fff00000008100 ffff88809ca0a000 0000000000000000 0000000100000007 [ 29.700653] raw: ffffea000270ad20 ffffea0002707ba0 ffff88813fe74ac0 0000000000000000 [ 29.708538] page dumped because: kasan: bad access detected [ 29.714223] [ 29.715844] Memory state around the buggy address: [ 29.720745] ffff88809ca0b700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.728079] ffff88809ca0b780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.735410] >ffff88809ca0b800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.742740] ^ [ 29.748944] ffff88809ca0b880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.756279] ffff88809ca0b900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.763639] ================================================================== [ 29.770968] Disabling lock debugging due to kernel taint [ 29.784237] Kernel panic - not syncing: panic_on_warn set ... [ 29.784237] [ 29.791607] CPU: 1 PID: 8474 Comm: syz-executor272 Tainted: G B 4.14.294-syzkaller #0 [ 29.800681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 29.810006] Call Trace: [ 29.812567] dump_stack+0x1b2/0x281 [ 29.816171] panic+0x1f9/0x42d [ 29.819337] ? add_taint.cold+0x16/0x16 [ 29.823283] ? ___preempt_schedule+0x16/0x18 [ 29.827664] kasan_end_report+0x43/0x49 [ 29.831612] kasan_report_error.cold+0xa7/0x191 [ 29.836258] ? __list_add_valid+0x93/0xa0 [ 29.840377] __asan_report_load8_noabort+0x68/0x70 [ 29.845279] ? __list_add_valid+0x93/0xa0 [ 29.849401] __list_add_valid+0x93/0xa0 [ 29.853347] rdma_listen+0x656/0x9b0 [ 29.857035] ucma_listen+0x10b/0x170 [ 29.860732] ? ucma_bind_ip+0x150/0x150 [ 29.864681] ? _copy_from_user+0x96/0x100 [ 29.868799] ? ucma_bind_ip+0x150/0x150 [ 29.872746] ucma_write+0x206/0x2c0 [ 29.876347] ? ucma_set_ib_path+0x510/0x510 [ 29.880642] __vfs_write+0xe4/0x630 [ 29.884248] ? ucma_set_ib_path+0x510/0x510 [ 29.888541] ? kernel_read+0x110/0x110 [ 29.892417] ? common_file_perm+0x3ee/0x580 [ 29.896723] ? security_file_permission+0x82/0x1e0 [ 29.901624] ? rw_verify_area+0xe1/0x2a0 [ 29.905655] vfs_write+0x17f/0x4d0 [ 29.909166] SyS_write+0xf2/0x210 [ 29.912590] ? SyS_read+0x210/0x210 [ 29.916186] ? do_syscall_64+0x4c/0x640 [ 29.920134] ? SyS_read+0x210/0x210 [ 29.923734] do_syscall_64+0x1d5/0x640 [ 29.927595] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 29.932756] RIP: 0033:0x7f2fb883aa79 [ 29.936440] RSP: 002b:00007f2fb87cb318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 29.944122] RAX: ffffffffffffffda RBX: 00007f2fb88c2418 RCX: 00007f2fb883aa79 [ 29.951380] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 [ 29.958620] RBP: 00007f2fb88c2410 R08: 00007f2fb87cb700 R09: 0000000000000000 [ 29.965862] R10: 00007f2fb87cb700 R11: 0000000000000246 R12: 006d635f616d6472 [ 29.973102] R13: 00007ffd13dc321f R14: 00007f2fb87cb400 R15: 0000000000022000 [ 29.980515] Kernel Offset: disabled [ 29.984130] Rebooting in 86400 seconds..