CVE-2026-64163None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: test_kprobes: clear kprobes between test runs Running the kprobes sanity tests twice makes all tests fail and eventually crashes the kernel. [root@martin-riscv-1 ~]# …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
In the Linux kernel, the following vulnerability has been resolved:
test_kprobes: clear kprobes between test runs
Running the kprobes sanity tests twice makes all tests fail and eventually crashes the kernel.
[root@martin-riscv-1 ~]# echo 1 > /sys/kernel/debug/kunit/kprobes_test/run ...
ok 1 kprobes_test [root@martin-riscv-1 ~]# echo 1 > /sys/kernel/debug/kunit/kprobes_test/run ...
Expected 0 == register_kprobe(&kp), but register_kprobe(&kp) == -22 (0xffffffffffffffea) ... Unable to handle kernel paging request ...
The testsuite defines several kprobes and kretprobes as static variables that are preserved across test runs.
After register_kprobe and unregister_kprobe, a kprobe contains some leftover data that must be cleared before the kprobe can be registered again. The tests are setting symbol_name to define the probe location. Address and flags must be cleared.
The existing code clears some of the probes between subsequent tests, but not between two test runs. The leftover data from a previous test run makes the registrations fail in the next run.
Move the cleanups for all kprobes into kprobes_test_init, this function is called before each single test (including the first test of a test run).
Linux >= e44e81c5b90f698025eadceb7eef8661eda117d5 < 29ec976006dfab171a7e007976e38af56ce286e4Linux >= e44e81c5b90f698025eadceb7eef8661eda117d5 < 08d355936fcf70c81c94f9fe7310450b65c53399Linux >= e44e81c5b90f698025eadceb7eef8661eda117d5 < accc0004c501a9918313142282b094d408af06fbLinux >= e44e81c5b90f698025eadceb7eef8661eda117d5 < 1c24cf1fd67f6702c719ab73499392cb7af956aeLinux >= e44e81c5b90f698025eadceb7eef8661eda117d5 < 96515819d79f356f40da5540968d838ea570fab9Linux >= e44e81c5b90f698025eadceb7eef8661eda117d5 < ef5581bb30efb939cc2bf093475c6cc85258e5cdLinux 5.16Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-99284Nonenet: skbuff: propagate shared-frag marker in skb_zerocopy()
CVE-2026-99283Nonenetfilter: conntrack: tcp: use UNACK timeout for non-closing RST packets
CVE-2026-99272Nonesmb: client: validate the data area in SMB2_read()
CVE-2026-99271NoneALSA: line6: Clear prev_fbuf on capture buffer release
CVE-2026-99273Noneksmbd: reserve space for the UTF-16 terminator in stream info
CVE-2026-99275Nonesmb: client: reject short SESSION_SETUP responses