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6b1b324e96
configfs_rmdir() drops the last reference to an item while its dentry is still hashed, so a symlink(2) resolving that target takes a reference on freed memory. syzbot reported it [1]. Race mkdir/rmdir of a target against symlink/unlink of a link to it, watching /sys/kernel/warn_count. Fails until the fix [2] lands. Link: https://syzkaller.appspot.com/bug?extid=6b16e3d085833cbf3e25 [1] Link: https://lore.kernel.org/all/20260730093435.195441-1-vasilisalmpanis@gmail.com/ [2] Link: https://patch.msgid.link/20260826-config_selftest-v1-4-e364b07e91ac@debian.org Signed-off-by: Breno Leitao <leitao@debian.org> |
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| accounting | ||
| arch | ||
| bootconfig | ||
| bpf | ||
| build | ||
| certs | ||
| cgroup | ||
| counter | ||
| crypto | ||
| debugging | ||
| dma | ||
| docs | ||
| firewire | ||
| firmware | ||
| gpio | ||
| hv | ||
| iio | ||
| include | ||
| kvm/kvm_stat | ||
| laptop | ||
| leds | ||
| lib | ||
| memory-model | ||
| mm | ||
| net | ||
| objtool | ||
| pcmcia | ||
| perf | ||
| platform/x86/amd | ||
| power | ||
| rcu | ||
| sched | ||
| sched_ext | ||
| scripts | ||
| sound | ||
| spi | ||
| testing | ||
| thermal | ||
| time | ||
| tracing | ||
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| usb | ||
| verification | ||
| virtio | ||
| wmi | ||
| workqueue | ||
| writeback | ||
| Makefile | ||