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Krzysztof Wilczyński dcb638b472 alpha/PCI: Fix __pci_mmap_fits() overflow for zero-length BARs ... [ Upstream commit 802a3b3f47 ] Currently, __pci_mmap_fits() computes the BAR size using "pci_resource_len() - 1", which wraps to a large value when the BAR length is zero, causing the bounds check to incorrectly succeed. Add an early return for empty resources. Fixes: 10a0ef39fb ("PCI/alpha: pci sysfs resources") Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Magnus Lindholm <linmag7@gmail.com> Tested-by: Shivaprasad G Bhat <sbhat@linux.ibm.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Acked-by: Magnus Lindholm <linmag7@gmail.com> Link: https://patch.msgid.link/20260508043543.217179-15-kwilczynski@kernel.org Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2026-07-24 15:51:41 +02:00
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boot	alpha/boot/tools/objstrip: fix the check for ELF header	2023-03-10 09:39:35 +01:00
configs	alpha: defconfig: add necessary configs for boot testing	2021-07-25 22:33:03 -07:00
include	alpha: don't reference obsolete termio struct for TC* constants	2026-01-19 13:10:15 +01:00
kernel	alpha/PCI: Fix __pci_mmap_fits() overflow for zero-length BARs	2026-07-24 15:51:41 +02:00
lib	alpha: move __udiv_qrnnd library function to arch/alpha/lib/	2021-09-18 14:45:48 -07:00
math-emu	alpha: move __udiv_qrnnd library function to arch/alpha/lib/	2021-09-18 14:45:48 -07:00
mm	alpha: align stack for page fault and user unaligned trap handlers	2025-03-13 12:50:40 +01:00
Kbuild	alpha: move core-y in arch/alpha/Makefile to arch/alpha/Kbuild	2021-05-26 23:11:47 +09:00
Kconfig	alpha: enable GENERIC_PCI_IOMAP unconditionally	2021-09-19 10:37:00 -07:00
Kconfig.debug	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	alpha: move core-y in arch/alpha/Makefile to arch/alpha/Kbuild	2021-05-26 23:11:47 +09:00