Revision 61bf318eac2c13356f7bd1c6a05421ef504ccc8a authored by Sergei Trofimovich on 13 March 2021, 05:08:27 UTC, committed by Linus Torvalds on 13 March 2021, 19:27:31 UTC
In https://bugs.gentoo.org/769614 Dmitry noticed that `ptrace(PTRACE_GET_SYSCALL_INFO)` does not return error sign properly. The bug is in mismatch between get/set errors: static inline long syscall_get_error(struct task_struct *task, struct pt_regs *regs) { return regs->r10 == -1 ? regs->r8:0; } static inline long syscall_get_return_value(struct task_struct *task, struct pt_regs *regs) { return regs->r8; } static inline void syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, int error, long val) { if (error) { /* error < 0, but ia64 uses > 0 return value */ regs->r8 = -error; regs->r10 = -1; } else { regs->r8 = val; regs->r10 = 0; } } Tested on v5.10 on rx3600 machine (ia64 9040 CPU). Link: https://lkml.kernel.org/r/20210221002554.333076-2-slyfox@gentoo.org Link: https://bugs.gentoo.org/769614 Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> Reported-by: Dmitry V. Levin <ldv@altlinux.org> Reviewed-by: Dmitry V. Levin <ldv@altlinux.org> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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bcm | ||
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cirrus | ||
freescale | ||
intel | ||
mediatek | ||
meson | ||
mvebu | ||
nomadik | ||
nuvoton | ||
pxa | ||
qcom | ||
ralink | ||
renesas | ||
samsung | ||
spear | ||
sprd | ||
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sunxi | ||
tegra | ||
ti | ||
uniphier | ||
visconti | ||
vt8500 | ||
Kconfig | -rw-r--r-- | 11.6 KB |
Makefile | -rw-r--r-- | 2.9 KB |
core.c | -rw-r--r-- | 57.2 KB |
core.h | -rw-r--r-- | 8.0 KB |
devicetree.c | -rw-r--r-- | 10.9 KB |
devicetree.h | -rw-r--r-- | 1.1 KB |
pinconf-generic.c | -rw-r--r-- | 12.3 KB |
pinconf.c | -rw-r--r-- | 9.3 KB |
pinconf.h | -rw-r--r-- | 3.3 KB |
pinctrl-amd.c | -rw-r--r-- | 26.6 KB |
pinctrl-amd.h | -rw-r--r-- | 8.5 KB |
pinctrl-artpec6.c | -rw-r--r-- | 25.6 KB |
pinctrl-as3722.c | -rw-r--r-- | 17.2 KB |
pinctrl-at91-pio4.c | -rw-r--r-- | 34.8 KB |
pinctrl-at91.c | -rw-r--r-- | 51.7 KB |
pinctrl-at91.h | -rw-r--r-- | 3.5 KB |
pinctrl-axp209.c | -rw-r--r-- | 12.7 KB |
pinctrl-bm1880.c | -rw-r--r-- | 44.1 KB |
pinctrl-da850-pupd.c | -rw-r--r-- | 4.8 KB |
pinctrl-da9062.c | -rw-r--r-- | 7.8 KB |
pinctrl-digicolor.c | -rw-r--r-- | 8.4 KB |
pinctrl-equilibrium.c | -rw-r--r-- | 22.9 KB |
pinctrl-equilibrium.h | -rw-r--r-- | 4.5 KB |
pinctrl-falcon.c | -rw-r--r-- | 14.5 KB |
pinctrl-gemini.c | -rw-r--r-- | 77.1 KB |
pinctrl-ingenic.c | -rw-r--r-- | 98.3 KB |
pinctrl-k210.c | -rw-r--r-- | 25.8 KB |
pinctrl-lantiq.c | -rw-r--r-- | 8.6 KB |
pinctrl-lantiq.h | -rw-r--r-- | 3.4 KB |
pinctrl-lpc18xx.c | -rw-r--r-- | 42.0 KB |
pinctrl-max77620.c | -rw-r--r-- | 17.9 KB |
pinctrl-mcp23s08.c | -rw-r--r-- | 16.9 KB |
pinctrl-mcp23s08.h | -rw-r--r-- | 1.1 KB |
pinctrl-mcp23s08_i2c.c | -rw-r--r-- | 2.6 KB |
pinctrl-mcp23s08_spi.c | -rw-r--r-- | 6.1 KB |
pinctrl-microchip-sgpio.c | -rw-r--r-- | 22.3 KB |
pinctrl-ocelot.c | -rw-r--r-- | 34.6 KB |
pinctrl-oxnas.c | -rw-r--r-- | 35.7 KB |
pinctrl-palmas.c | -rw-r--r-- | 32.6 KB |
pinctrl-pic32.c | -rw-r--r-- | 80.9 KB |
pinctrl-pic32.h | -rw-r--r-- | 2.6 KB |
pinctrl-pistachio.c | -rw-r--r-- | 40.7 KB |
pinctrl-rk805.c | -rw-r--r-- | 12.2 KB |
pinctrl-rockchip.c | -rw-r--r-- | 102.6 KB |
pinctrl-single.c | -rw-r--r-- | 48.3 KB |
pinctrl-st.c | -rw-r--r-- | 47.5 KB |
pinctrl-stmfx.c | -rw-r--r-- | 22.5 KB |
pinctrl-sx150x.c | -rw-r--r-- | 29.1 KB |
pinctrl-tb10x.c | -rw-r--r-- | 26.2 KB |
pinctrl-utils.c | -rw-r--r-- | 3.7 KB |
pinctrl-utils.h | -rw-r--r-- | 1.7 KB |
pinctrl-xway.c | -rw-r--r-- | 65.5 KB |
pinctrl-zynq.c | -rw-r--r-- | 42.0 KB |
pinmux.c | -rw-r--r-- | 21.3 KB |
pinmux.h | -rw-r--r-- | 4.2 KB |
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