Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:SUNRPC: make sure cache entry active before cache_showThe function `c_show` was called with protection from RCU. This onlyensures that `cp` will not be freed. Therefore, the reference count for`cp` can drop to zero, which will trigger a refcount use-after-freewarning when `cache_get` is called. To resolve this issue, use`cache_get_rcu` to ensure that `cp` remains active.------------[ cut here ]------------refcount_t: addition on 0; use-after-free.WARNING: CPU: 7 PID: 822 at lib/refcount.c:25refcount_warn_saturate+0xb1/0x120CPU: 7 UID: 0 PID: 822 Comm: cat Not tainted 6.12.0-rc3+ #1Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS1.16.1-2.fc37 04/01/2014RIP: 0010:refcount_warn_saturate+0xb1/0x120Call Trace:
No PoCs from references.
- https://github.com/w4zu/Debian_security