Thomas Weißschuh 1a12709a29 ptp: Ensure info->enable callback is always set ... ANBZ: #19170 commit 391e982bfa upstream. The ioctl and sysfs handlers unconditionally call the ->enable callback. Not all drivers implement that callback, leading to NULL dereferences. Example of affected drivers: ptp_s390.c, ptp_vclock.c and ptp_mock.c. Instead use a dummy callback if no better was specified by the driver. Fixes: CVE-2025-21814 Fixes: d94ba80ebb ("ptp: Added a brand new class driver for ptp clocks.") Cc: stable@vger.kernel.org Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Acked-by: Richard Cochran <richardcochran@gmail.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://patch.msgid.link/20250123-ptp-enable-v1-1-b015834d3a47@weissschuh.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> Sigend-off-by: Bitao Hu <yaoma@linux.alibaba.com> Reviewed-by: Guixin Liu <kanie@linux.alibaba.com> Link: https://gitee.com/anolis/cloud-kernel/pulls/4918		2025-03-27 05:35:28 +00:00
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Kconfig	ptp: arm/arm64: Enable ptp_kvm for arm/arm64	2022-08-02 16:35:22 +08:00
Makefile	ptp: arm/arm64: Enable ptp_kvm for arm/arm64	2022-08-02 16:35:22 +08:00
idt8a340_reg.h	…
ptp_chardev.c	…
ptp_clock.c	ptp: Ensure info->enable callback is always set	2025-03-27 05:35:28 +00:00
ptp_clockmatrix.c	…
ptp_clockmatrix.h	…
ptp_dte.c	…
ptp_idt82p33.c	…
ptp_idt82p33.h	…
ptp_ines.c	…
ptp_kvm_arm.c	ptp: arm/arm64: Enable ptp_kvm for arm/arm64	2022-08-02 16:35:22 +08:00
ptp_kvm_common.c	ptp: Don't print an error if ptp_kvm is not supported	2022-08-02 16:35:25 +08:00
ptp_kvm_x86.c	ptp: Fix ptp_kvm_getcrosststamp issue for x86 ptp_kvm	2023-10-18 10:25:06 +08:00
ptp_pch.c	…
ptp_private.h	anolis: kabi: Reserve some fields	2023-02-24 07:45:32 +00:00
ptp_qoriq.c	…
ptp_qoriq_debugfs.c	…
ptp_sysfs.c	ptp: replace snprintf with sysfs_emit	2022-04-13 21:00:55 +02:00
ptp_vmw.c	…