CVE-2026-23201None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: ceph: fix oops due to invalid pointer for kfree() in parse_longname() This fixes a kernel oops when reading ceph snapshot directories (.snap), for example by simply ru…
▾ 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 Sep 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
0.1% → 0.1%
In the Linux kernel, the following vulnerability has been resolved:
ceph: fix oops due to invalid pointer for kfree() in parse_longname()
This fixes a kernel oops when reading ceph snapshot directories (.snap),
for example by simply running ls /mnt/my_ceph/.snap.
The variable str is guarded by __free(kfree), but advanced by one for skipping the initial '_' in snapshot names. Thus, kfree() is called with an invalid pointer. This patch removes the need for advancing the pointer so kfree() is called with correct memory pointer.
Steps to reproduce:
Create snapshots on a cephfs volume (I've 63 snaps in my testcase)
Add cephfs mount to fstab $ echo "[email protected]=/volumes/datapool/stuff/3461082b-ecc9-4e82-8549-3fd2590d3fb6 /mnt/test/stuff ceph acl,noatime,_netdev 0 0" >> /etc/fstab
Reboot the system $ systemctl reboot
Check if it's really mounted $ mount | grep stuff
List snapshots (expected 63 snapshots on my system) $ ls /mnt/test/stuff/.snap
Now ls hangs forever and the kernel log shows the oops.
Linux >= 4b9aee707c4580511983a0998547f3b28514e6a6 < c9a129c82ddf82a50b4f8960d2609714ca2dbd26Linux >= bb80f7618832d26f7e395f52f82b1dac76223e5f < 8c9af7339de419819cfc641d551675d38ff99abfLinux >= 101841c38346f4ca41dc1802c867da990ffb32eb < e258ed369c9e04caa7d2fd49785d753ae4034cb6Linux >= 101841c38346f4ca41dc1802c867da990ffb32eb < bc8dedae022ce3058659c3addef3ec4b41d15e00Linux 3145b2b11492d61c512bbc59660bb823bc757f48Linux 493479af8af3ab907f49e99323777d498a4fbd2bLinux >= 6.12.42 < 6.12.70Linux >= 6.15.10 < 6.16Linux >= 6.16.1 < 6.17Linux 6.17Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-68286NoneIn the Linux kernel, the following vulnerability has been resolved: drop_monitor: perform u64_stats updates under IRQ-disabled section In net_dm_packet_trace_kfree_skb_hit() and net_dm_hw_trap_packet_probe(), u64_stats_update_begin() /…
CVE-2026-68337NoneIn the Linux kernel, the following vulnerability has been resolved: bpf: Reject redirect helpers without a bpf_net_context The bpf_redirect*() helpers and skb_do_redirect() obtain the per-task bpf_redirect_info via bpf_net_ctx_get_ri()…
CVE-2026-68287High· 7.5In the Linux kernel, the following vulnerability has been resolved: drop_monitor: fix size calculations for 64-bit attributes net_dm_packet_report_fill() and net_dm_hw_packet_report_fill() use nla_put_u64_64bit() to append 64-bit attri…
CVE-2026-68288NoneIn the Linux kernel, the following vulnerability has been resolved: net: drop_monitor: fix info leak in NET_DM_ATTR_PAYLOAD net_dm_packet_report_fill() and net_dm_hw_packet_report_fill() open code the NET_DM_ATTR_PAYLOAD attribute to a…
CVE-2026-68289NoneIn the Linux kernel, the following vulnerability has been resolved: tipc: fix integer overflow in tipc_recvmsg() and tipc_recvstream() In tipc_recvmsg(), the copy length is computed as: copy = min_t(int, dlen - offset, buflen); buf…
CVE-2026-68303NoneIn the Linux kernel, the following vulnerability has been resolved: drm/vc4: hvs/v3d: Fix null dereference in unbind The hvs and v3d drivers use dev_get_drvdata(master) in their unbind functions