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| Title | Replies (including bot) | Last reply |
|---|---|---|
| [PATCH] comedi: runflags cannot determine whether to reclaim chanlist | 2 (2) | 2025/12/15 12:25 |
| [PATCH] comedi: test memleak | 2 (4) | 2025/12/15 09:48 |
| [syzbot] [comedi?] memory leak in do_cmd_ioctl | 0 (1) | 2025/12/15 04:03 |
BUG: memory leak
unreferenced object 0xffff88811193c4d8 (size 8):
comm "syz.0.17", pid 6094, jiffies 4294942826
hex dump (first 8 bytes):
04 00 00 00 00 00 00 00 ........
backtrace (crc 844a0efa):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4958 [inline]
slab_alloc_node mm/slub.c:5263 [inline]
__do_kmalloc_node mm/slub.c:5656 [inline]
__kmalloc_node_track_caller_noprof+0x3af/0x670 mm/slub.c:5764
memdup_user+0x2a/0xe0 mm/util.c:221
memdup_array_user include/linux/string.h:39 [inline]
__comedi_get_user_chanlist drivers/comedi/comedi_fops.c:1815 [inline]
do_cmd_ioctl.part.0+0x112/0x350 drivers/comedi/comedi_fops.c:1890
do_cmd_ioctl drivers/comedi/comedi_fops.c:1858 [inline]
comedi_unlocked_ioctl+0xdea/0x1300 drivers/comedi/comedi_fops.c:2319
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0xf4/0x140 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: memory leak
unreferenced object 0xffff88811193c990 (size 8):
comm "syz.0.18", pid 6096, jiffies 4294942827
hex dump (first 8 bytes):
04 00 00 00 00 00 00 00 ........
backtrace (crc 844a0efa):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4958 [inline]
slab_alloc_node mm/slub.c:5263 [inline]
__do_kmalloc_node mm/slub.c:5656 [inline]
__kmalloc_node_track_caller_noprof+0x3af/0x670 mm/slub.c:5764
memdup_user+0x2a/0xe0 mm/util.c:221
memdup_array_user include/linux/string.h:39 [inline]
__comedi_get_user_chanlist drivers/comedi/comedi_fops.c:1815 [inline]
do_cmd_ioctl.part.0+0x112/0x350 drivers/comedi/comedi_fops.c:1890
do_cmd_ioctl drivers/comedi/comedi_fops.c:1858 [inline]
comedi_unlocked_ioctl+0xdea/0x1300 drivers/comedi/comedi_fops.c:2319
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0xf4/0x140 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: memory leak
unreferenced object 0xffff88811193cea0 (size 8):
comm "syz.0.19", pid 6099, jiffies 4294942829
hex dump (first 8 bytes):
04 00 00 00 00 00 00 00 ........
backtrace (crc 844a0efa):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4958 [inline]
slab_alloc_node mm/slub.c:5263 [inline]
__do_kmalloc_node mm/slub.c:5656 [inline]
__kmalloc_node_track_caller_noprof+0x3af/0x670 mm/slub.c:5764
memdup_user+0x2a/0xe0 mm/util.c:221
memdup_array_user include/linux/string.h:39 [inline]
__comedi_get_user_chanlist drivers/comedi/comedi_fops.c:1815 [inline]
do_cmd_ioctl.part.0+0x112/0x350 drivers/comedi/comedi_fops.c:1890
do_cmd_ioctl drivers/comedi/comedi_fops.c:1858 [inline]
comedi_unlocked_ioctl+0xdea/0x1300 drivers/comedi/comedi_fops.c:2319
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0xf4/0x140 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: memory leak
unreferenced object 0xffff888144d28bf8 (size 8):
comm "syz.0.20", pid 6124, jiffies 4294943361
hex dump (first 8 bytes):
04 00 00 00 00 00 00 00 ........
backtrace (crc 844a0efa):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4958 [inline]
slab_alloc_node mm/slub.c:5263 [inline]
__do_kmalloc_node mm/slub.c:5656 [inline]
__kmalloc_node_track_caller_noprof+0x3af/0x670 mm/slub.c:5764
memdup_user+0x2a/0xe0 mm/util.c:221
memdup_array_user include/linux/string.h:39 [inline]
__comedi_get_user_chanlist drivers/comedi/comedi_fops.c:1815 [inline]
do_cmd_ioctl.part.0+0x112/0x350 drivers/comedi/comedi_fops.c:1890
do_cmd_ioctl drivers/comedi/comedi_fops.c:1858 [inline]
comedi_unlocked_ioctl+0xdea/0x1300 drivers/comedi/comedi_fops.c:2319
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0xf4/0x140 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/12/15 02:37 | upstream | 8f0b4cce4481 | d6526ea3 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-leak | memory leak in do_cmd_ioctl |