BUG: memory leak unreferenced object 0xffff8881156c7c00 (size 1024): comm "syz-executor.3", pid 5809, jiffies 4294945210 hex dump (first 32 bytes): 00 64 c6 19 81 88 ff ff 00 00 00 00 00 00 00 00 .d.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 8eae3bc8): [] kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline] [] slab_post_alloc_hook mm/slub.c:3817 [inline] [] slab_alloc_node mm/slub.c:3860 [inline] [] kmalloc_trace+0x283/0x330 mm/slub.c:4007 [] kmalloc include/linux/slab.h:590 [inline] [] kzalloc include/linux/slab.h:711 [inline] [] gsm_dlci_alloc+0x27/0x1f0 drivers/tty/n_gsm.c:2641 [] gsm_activate_mux+0x1c/0x1c0 drivers/tty/n_gsm.c:3128 [] gsm_config_ext drivers/tty/n_gsm.c:3433 [inline] [] gsmld_ioctl+0x6cf/0x9f0 drivers/tty/n_gsm.c:3797 [] tty_ioctl+0x3eb/0xc70 drivers/tty/tty_io.c:2789 [] vfs_ioctl fs/ioctl.c:51 [inline] [] __do_sys_ioctl fs/ioctl.c:871 [inline] [] __se_sys_ioctl fs/ioctl.c:857 [inline] [] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:857 [] do_syscall_x64 arch/x86/entry/common.c:52 [inline] [] do_syscall_64+0x50/0x140 arch/x86/entry/common.c:83 [] entry_SYSCALL_64_after_hwframe+0x63/0x6b BUG: memory leak unreferenced object 0xffff88811a005000 (size 4096): comm "syz-executor.3", pid 5809, jiffies 4294945210 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): [] kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline] [] slab_post_alloc_hook mm/slub.c:3817 [inline] [] slab_alloc_node mm/slub.c:3860 [inline] [] __do_kmalloc_node mm/slub.c:3980 [inline] [] __kmalloc+0x2cf/0x410 mm/slub.c:3994 [] kmalloc_array include/linux/slab.h:627 [inline] [] __kfifo_alloc+0x89/0xe0 lib/kfifo.c:43 [] gsm_dlci_alloc+0x71/0x1f0 drivers/tty/n_gsm.c:2646 [] gsm_activate_mux+0x1c/0x1c0 drivers/tty/n_gsm.c:3128 [] gsm_config_ext drivers/tty/n_gsm.c:3433 [inline] [] gsmld_ioctl+0x6cf/0x9f0 drivers/tty/n_gsm.c:3797 [] tty_ioctl+0x3eb/0xc70 drivers/tty/tty_io.c:2789 [] vfs_ioctl fs/ioctl.c:51 [inline] [] __do_sys_ioctl fs/ioctl.c:871 [inline] [] __se_sys_ioctl fs/ioctl.c:857 [inline] [] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:857 [] do_syscall_x64 arch/x86/entry/common.c:52 [inline] [] do_syscall_64+0x50/0x140 arch/x86/entry/common.c:83 [] entry_SYSCALL_64_after_hwframe+0x63/0x6b BUG: memory leak unreferenced object 0xffff888119533c00 (size 1024): comm "syz-executor.4", pid 5849, jiffies 4294945278 hex dump (first 32 bytes): 00 1c 53 19 81 88 ff ff 00 00 00 00 00 00 00 00 ..S............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 78b0c077): [] kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline] [] slab_post_alloc_hook mm/slub.c:3817 [inline] [] slab_alloc_node mm/slub.c:3860 [inline] [] kmalloc_trace+0x283/0x330 mm/slub.c:4007 [] kmalloc include/linux/slab.h:590 [inline] [] kzalloc include/linux/slab.h:711 [inline] [] gsm_dlci_alloc+0x27/0x1f0 drivers/tty/n_gsm.c:2641 [] gsm_activate_mux+0x1c/0x1c0 drivers/tty/n_gsm.c:3128 [] gsm_config_ext drivers/tty/n_gsm.c:3433 [inline] [] gsmld_ioctl+0x6cf/0x9f0 drivers/tty/n_gsm.c:3797 [] tty_ioctl+0x3eb/0xc70 drivers/tty/tty_io.c:2789 [] vfs_ioctl fs/ioctl.c:51 [inline] [] __do_sys_ioctl fs/ioctl.c:871 [inline] [] __se_sys_ioctl fs/ioctl.c:857 [inline] [] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:857 [] do_syscall_x64 arch/x86/entry/common.c:52 [inline] [] do_syscall_64+0x50/0x140 arch/x86/entry/common.c:83 [] entry_SYSCALL_64_after_hwframe+0x63/0x6b BUG: memory leak unreferenced object 0xffff8881400b2000 (size 4096): comm "syz-executor.4", pid 5849, jiffies 4294945278 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): [] kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline] [] slab_post_alloc_hook mm/slub.c:3817 [inline] [] slab_alloc_node mm/slub.c:3860 [inline] [] __do_kmalloc_node mm/slub.c:3980 [inline] [] __kmalloc+0x2cf/0x410 mm/slub.c:3994 [] kmalloc_array include/linux/slab.h:627 [inline] [] __kfifo_alloc+0x89/0xe0 lib/kfifo.c:43 [] gsm_dlci_alloc+0x71/0x1f0 drivers/tty/n_gsm.c:2646 [] gsm_activate_mux+0x1c/0x1c0 drivers/tty/n_gsm.c:3128 [] gsm_config_ext drivers/tty/n_gsm.c:3433 [inline] [] gsmld_ioctl+0x6cf/0x9f0 drivers/tty/n_gsm.c:3797 [] tty_ioctl+0x3eb/0xc70 drivers/tty/tty_io.c:2789 [] vfs_ioctl fs/ioctl.c:51 [inline] [] __do_sys_ioctl fs/ioctl.c:871 [inline] [] __se_sys_ioctl fs/ioctl.c:857 [inline] [] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:857 [] do_syscall_x64 arch/x86/entry/common.c:52 [inline] [] do_syscall_64+0x50/0x140 arch/x86/entry/common.c:83 [] entry_SYSCALL_64_after_hwframe+0x63/0x6b BUG: memory leak unreferenced object 0xffff88811b24a800 (size 1024): comm "syz-executor.7", pid 5899, jiffies 4294945419 hex dump (first 32 bytes): 00 a4 24 1b 81 88 ff ff 00 00 00 00 00 00 00 00 ..$............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc d3357067): [] kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline] [] slab_post_alloc_hook mm/slub.c:3817 [inline] [] slab_alloc_node mm/slub.c:3860 [inline] [] kmalloc_trace+0x283/0x330 mm/slub.c:4007 [] kmalloc include/linux/slab.h:590 [inline] [] kzalloc include/linux/slab.h:711 [inline] [] gsm_dlci_alloc+0x27/0x1f0 drivers/tty/n_gsm.c:2641 [] gsm_activate_mux+0x1c/0x1c0 drivers/tty/n_gsm.c:3128 [] gsm_config_ext drivers/tty/n_gsm.c:3433 [inline] [] gsmld_ioctl+0x6cf/0x9f0 drivers/tty/n_gsm.c:3797 [] tty_ioctl+0x3eb/0xc70 drivers/tty/tty_io.c:2789 [] vfs_ioctl fs/ioctl.c:51 [inline] [] __do_sys_ioctl fs/ioctl.c:871 [inline] [] __se_sys_ioctl fs/ioctl.c:857 [inline] [] __x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:857 [] do_syscall_x64 arch/x86/entry/common.c:52 [inline] [] do_syscall_64+0x50/0x140 arch/x86/entry/common.c:83 [] entry_SYSCALL_64_after_hwframe+0x63/0x6b