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1.0 X-Received: by 2002:a02:a199:: with SMTP id n25mr43419354jah.92.1571255527153; Wed, 16 Oct 2019 12:52:07 -0700 (PDT) Date: Wed, 16 Oct 2019 12:52:07 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008c395405950c6f7c@google.com> Subject: memory leak in v9fs_cache_session_get_cookie (2) From: syzbot To: asmadeus@codewreck.org, ericvh@gmail.com, linux-kernel@vger.kernel.org, lucho@ionkov.net, syzkaller-bugs@googlegroups.com, v9fs-developer@lists.sourceforge.net Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 3b1f00ac Merge tag 'for_linus' of git://git.kernel.org/pub.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13a95fe7600000 kernel config: https://syzkaller.appspot.com/x/.config?x=cd7f8e43c7bdf83a dashboard link: https://syzkaller.appspot.com/bug?extid=f577fd1dae1f5b0fd8c7 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13602173600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1700584b600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+f577fd1dae1f5b0fd8c7@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffff888122c0b620 (size 32): comm "syz-executor002", pid 7059, jiffies 4294945363 (age 18.760s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819ce80 (size 32): comm "syz-executor002", pid 7062, jiffies 4294945363 (age 18.760s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819c2c0 (size 32): comm "syz-executor002", pid 7067, jiffies 4294945363 (age 18.760s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 73 74 65 6d 5f 4294945363.stem_ 72 3a 6b 65 72 6e 65 6c 5f 74 3a 73 30 00 00 00 r:kernel_t:s0... backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888117fc1c80 (size 32): comm "syz-executor002", pid 7080, jiffies 4294945384 (age 18.550s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 38 34 00 00 00 00 00 00 4294945384...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888122c0b620 (size 32): comm "syz-executor002", pid 7059, jiffies 4294945363 (age 19.840s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819ce80 (size 32): comm "syz-executor002", pid 7062, jiffies 4294945363 (age 19.840s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819c2c0 (size 32): comm "syz-executor002", pid 7067, jiffies 4294945363 (age 19.840s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 73 74 65 6d 5f 4294945363.stem_ 72 3a 6b 65 72 6e 65 6c 5f 74 3a 73 30 00 00 00 r:kernel_t:s0... backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888117fc1c80 (size 32): comm "syz-executor002", pid 7080, jiffies 4294945384 (age 19.630s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 38 34 00 00 00 00 00 00 4294945384...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888122c0b620 (size 32): comm "syz-executor002", pid 7059, jiffies 4294945363 (age 20.910s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819ce80 (size 32): comm "syz-executor002", pid 7062, jiffies 4294945363 (age 20.910s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819c2c0 (size 32): comm "syz-executor002", pid 7067, jiffies 4294945363 (age 20.910s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 73 74 65 6d 5f 4294945363.stem_ 72 3a 6b 65 72 6e 65 6c 5f 74 3a 73 30 00 00 00 r:kernel_t:s0... backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888117fc1c80 (size 32): comm "syz-executor002", pid 7080, jiffies 4294945384 (age 20.700s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 38 34 00 00 00 00 00 00 4294945384...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888122c0b620 (size 32): comm "syz-executor002", pid 7059, jiffies 4294945363 (age 22.950s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819ce80 (size 32): comm "syz-executor002", pid 7062, jiffies 4294945363 (age 22.950s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819c2c0 (size 32): comm "syz-executor002", pid 7067, jiffies 4294945363 (age 22.950s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 73 74 65 6d 5f 4294945363.stem_ 72 3a 6b 65 72 6e 65 6c 5f 74 3a 73 30 00 00 00 r:kernel_t:s0... backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888117fc1c80 (size 32): comm "syz-executor002", pid 7080, jiffies 4294945384 (age 22.740s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 38 34 00 00 00 00 00 00 4294945384...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888122c0b620 (size 32): comm "syz-executor002", pid 7059, jiffies 4294945363 (age 25.030s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819ce80 (size 32): comm "syz-executor002", pid 7062, jiffies 4294945363 (age 25.030s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819c2c0 (size 32): comm "syz-executor002", pid 7067, jiffies 4294945363 (age 25.030s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 73 74 65 6d 5f 4294945363.stem_ 72 3a 6b 65 72 6e 65 6c 5f 74 3a 73 30 00 00 00 r:kernel_t:s0... backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888117fc1c80 (size 32): comm "syz-executor002", pid 7080, jiffies 4294945384 (age 24.820s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 38 34 00 00 00 00 00 00 4294945384...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888122c0b620 (size 32): comm "syz-executor002", pid 7059, jiffies 4294945363 (age 26.110s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819ce80 (size 32): comm "syz-executor002", pid 7062, jiffies 4294945363 (age 26.110s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 00 00 00 00 00 4294945363...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811819c2c0 (size 32): comm "syz-executor002", pid 7067, jiffies 4294945363 (age 26.110s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 36 33 00 73 74 65 6d 5f 4294945363.stem_ 72 3a 6b 65 72 6e 65 6c 5f 74 3a 73 30 00 00 00 r:kernel_t:s0... backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888117fc1c80 (size 32): comm "syz-executor002", pid 7080, jiffies 4294945384 (age 25.900s) hex dump (first 32 bytes): 34 32 39 34 39 34 35 33 38 34 00 00 00 00 00 00 4294945384...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000914ad539>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000914ad539>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000914ad539>] slab_alloc mm/slab.c:3319 [inline] [<00000000914ad539>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<00000000d7aea07a>] kmalloc include/linux/slab.h:556 [inline] [<00000000d7aea07a>] v9fs_random_cachetag fs/9p/cache.c:36 [inline] [<00000000d7aea07a>] v9fs_cache_session_get_cookie+0xa6/0x110 fs/9p/cache.c:52 [<00000000fdcf7df2>] v9fs_session_init+0x5c3/0x880 fs/9p/v9fs.c:470 [<000000001a42c839>] v9fs_mount+0x5e/0x3c0 fs/9p/vfs_super.c:124 [<00000000a90ee9c2>] legacy_get_tree+0x27/0x80 fs/fs_context.c:647 [<000000009bc32b08>] vfs_get_tree+0x2d/0xe0 fs/super.c:1545 [<000000005bc96ae8>] do_new_mount fs/namespace.c:2823 [inline] [<000000005bc96ae8>] do_mount+0x95f/0xc60 fs/namespace.c:3143 [<000000002301e20b>] ksys_mount+0xab/0x120 fs/namespace.c:3352 [<000000001a409208>] __do_sys_mount fs/namespace.c:3366 [inline] [<000000001a409208>] __se_sys_mount fs/namespace.c:3363 [inline] [<000000001a409208>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3363 [<0000000033193570>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000b1f42f27>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 executing program executing program --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches