archives/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-03-14 09:06:17 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions
linux/include
History
Matthew Wilcox (Oracle) ce60f27bb6 mm: abstract moving to the next PFN 
In order to fix the L1TF vulnerability, x86 can invert the PTE bits for
PROT_NONE VMAs, which means we cannot move from one PTE to the next by
adding 1 to the PFN field of the PTE.  This results in the BUG reported at
[1].

Abstract advancing the PTE to the next PFN through a pte_next_pfn()
function/macro.

Link: https://lkml.kernel.org/r/20230920040958.866520-1-willy@infradead.org
Fixes: bcc6cc8325 ("mm: add default definition of set_ptes()")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reported-by: syzbot+55cc72f8cc3a549119df@syzkaller.appspotmail.com
Closes: https://lkml.kernel.org/r/000000000000d099fa0604f03351@google.com [1]
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-09-29 17:20:46 -07:00
..
acpi Merge branches 'acpi-scan', 'acpi-tad', 'acpi-extlog' and 'acpi-misc' 2023-08-25 20:49:52 +02:00
asm-generic ata changes for 6.6 2023-09-05 12:37:28 -07:00
clocksource
crypto This update includes the following changes: 2023-08-29 11:23:29 -07:00
drm drm/tests: helpers: Avoid a driver uaf 2023-09-14 13:57:58 +02:00
dt-bindings IOMMU Updates for Linux v6.6 2023-09-01 16:54:25 -07:00
keys
kunit - An extensive rework of kexec and crash Kconfig from Eric DeVolder 2023-08-29 14:53:51 -07:00
kvm KVM: arm64: pmu: Guard PMU emulation definitions with CONFIG_KVM 2023-08-23 20:01:03 +01:00
linux mm: abstract moving to the next PFN 2023-09-29 17:20:46 -07:00
math-emu
media media updates for v6.6-rc1 2023-09-01 12:21:32 -07:00
memory
misc
net tcp: Fix bind() regression for v4-mapped-v6 wildcard address. 2023-09-13 07:18:04 +01:00
pcmcia
ras
rdma
rv rv: Set variable 'da_mon_##name' to static 2023-09-01 21:00:00 -04:00
scsi SCSI misc on 20230909 2023-09-09 12:01:33 -07:00
soc IOMMU Updates for Linux v6.6 2023-09-01 16:54:25 -07:00
sound ASoC: Name iov_iter argument as iterator instead of buffer 2023-09-01 15:38:49 +02:00
target
trace tracing: Replace strlcpy with strscpy in trace/events/task.h 2023-09-01 21:00:00 -04:00
uapi RISC-V Patches for the 6.6 Merge Window, Part 2 (try 2) 2023-09-09 14:25:11 -07:00
ufs Merge branch 'fixes' into misc 2023-09-02 08:25:19 +01:00
vdso
video
xen dma-maping updates for Linux 6.6 2023-08-29 20:32:10 -07:00