redshift/redshift-gtk 1.12 permission denied reading config file.

[OgalFinklestein]

Describe the bug
redshift -c /tmp/redshift.conf -P returns

fopen: Permission denied
Unable to load config file.

even if I sudo the command, same error.

% namei -mlx /tmp/redshift.conf

f: /tmp/redshift.conf
Drwxr-xr-x root  root  /
Drwxrwxrwt root  root  tmp
-rw-rw-rw- sbirl sbirl redshift.conf

% strace -o ~/tmp/strace redshift -c /tmp/redshift.conf -P

execve("/usr/bin/redshift", ["redshift", "-c", "/tmp/redshift.conf", "-P"], 0x7fff84830838 /* 49 vars */) = 0
brk(NULL)                               = 0x558d78d77000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f45c0a01000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=95607, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 95607, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f45c09e9000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libdrm.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=84688, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 89328, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c09d3000
mmap(0x7f45c09d8000, 45056, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x7f45c09d8000
mmap(0x7f45c09e3000, 16384, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10000) = 0x7f45c09e3000
mmap(0x7f45c09e7000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13000) = 0x7f45c09e7000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libwayland-client.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=68968, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 71048, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c09c1000
mmap(0x7f45c09c7000, 24576, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f45c09c7000
mmap(0x7f45c09cd000, 12288, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xc000) = 0x7f45c09cd000
mmap(0x7f45c09d0000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xe000) = 0x7f45c09d0000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libxcb.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=166824, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 169096, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c0997000
mmap(0x7f45c09a3000, 77824, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xc000) = 0x7f45c09a3000
mmap(0x7f45c09b6000, 36864, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1f000) = 0x7f45c09b6000
mmap(0x7f45c09bf000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x27000) = 0x7f45c09bf000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libxcb-randr.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=67864, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 65848, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c0986000
mmap(0x7f45c098d000, 20480, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f45c098d000
mmap(0x7f45c0992000, 12288, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xc000) = 0x7f45c0992000
mmap(0x7f45c0995000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xf000) = 0x7f45c0995000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libX11.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=1318408, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 1318216, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c0844000
mmap(0x7f45c0860000, 569344, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c000) = 0x7f45c0860000
mmap(0x7f45c08eb000, 610304, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa7000) = 0x7f45c08eb000
mmap(0x7f45c0980000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13c000) = 0x7f45c0980000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libXxf86vm.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\17\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=22816, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f45c0842000
mmap(NULL, 4215144, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f45c043c000
mmap(0x7f45c0600000, 2117992, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0) = 0x7f45c0600000
munmap(0x7f45c043c000, 1851392)         = 0
munmap(0x7f45c0806000, 242024)          = 0
mprotect(0x7f45c0605000, 2093056, PROT_NONE) = 0
mmap(0x7f45c0804000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7f45c0804000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libgio-2.0.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=1953008, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 1963136, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c0420000
mmap(0x7f45c045a000, 1101824, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3a000) = 0x7f45c045a000
mmap(0x7f45c0567000, 577536, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x147000) = 0x7f45c0567000
mmap(0x7f45c05f4000, 40960, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1d3000) = 0x7f45c05f4000
mmap(0x7f45c05fe000, 5248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f45c05fe000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libgobject-2.0.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=387288, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 388136, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c03c1000
mmap(0x7f45c03d0000, 204800, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xf000) = 0x7f45c03d0000
mmap(0x7f45c0402000, 106496, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x41000) = 0x7f45c0402000
mmap(0x7f45c041c000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5b000) = 0x7f45c041c000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libglib-2.0.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=1273360, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 1274504, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c0289000
mmap(0x7f45c02a6000, 577536, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1d000) = 0x7f45c02a6000
mmap(0x7f45c0333000, 569344, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xaa000) = 0x7f45c0333000
mmap(0x7f45c03be000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x135000) = 0x7f45c03be000
mmap(0x7f45c03c0000, 648, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f45c03c0000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=911904, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 913680, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c01a9000
mmap(0x7f45c01b9000, 475136, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10000) = 0x7f45c01b9000
mmap(0x7f45c022d000, 368640, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x84000) = 0x7f45c022d000
mmap(0x7f45c0287000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xdd000) = 0x7f45c0287000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=14480, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 16400, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c083d000
mmap(0x7f45c083e000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7f45c083e000
mmap(0x7f45c083f000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f45c083f000
mmap(0x7f45c0840000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f45c0840000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20t\2\0\0\0\0\0"..., 832) = 832
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784, 64) = 784
newfstatat(3, "", {st_mode=S_IFREG|0755, st_size=1922136, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f45c083b000
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784, 64) = 784
mmap(NULL, 1970000, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45bffc8000
mmap(0x7f45bffee000, 1396736, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x26000) = 0x7f45bffee000
mmap(0x7f45c0143000, 339968, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17b000) = 0x7f45c0143000
mmap(0x7f45c0196000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ce000) = 0x7f45c0196000
mmap(0x7f45c019c000, 53072, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f45c019c000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libffi.so.8", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=43480, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 46696, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c082f000
mmap(0x7f45c0831000, 24576, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f45c0831000
mmap(0x7f45c0837000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7f45c0837000
mmap(0x7f45c0839000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x9000) = 0x7f45c0839000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libXau.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\22\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=14496, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 16672, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c082a000
mmap(0x7f45c082b000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7f45c082b000
mmap(0x7f45c082c000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f45c082c000
mmap(0x7f45c082d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f45c082d000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libXdmcp.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@\23\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=22728, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 4215024, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f45bfbc2000
mmap(0x7f45bfc00000, 2117872, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0) = 0x7f45bfc00000
munmap(0x7f45bfbc2000, 253952)          = 0
munmap(0x7f45bfe06000, 1839344)         = 0
mprotect(0x7f45bfc05000, 2093056, PROT_NONE) = 0
mmap(0x7f45bfe04000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7f45bfe04000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libXext.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=81568, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 84248, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c0815000
mmap(0x7f45c0819000, 45056, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7f45c0819000
mmap(0x7f45c0824000, 16384, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xf000) = 0x7f45c0824000
mmap(0x7f45c0828000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12000) = 0x7f45c0828000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libgmodule-2.0.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=18480, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f45c0813000
mmap(NULL, 20616, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45c080d000
mmap(0x7f45c080e000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7f45c080e000
mmap(0x7f45c0810000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f45c0810000
mmap(0x7f45c0811000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f45c0811000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libz.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=121280, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 123280, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45bffa9000
mmap(0x7f45bffac000, 77824, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f45bffac000
mmap(0x7f45bffbf000, 28672, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7f45bffbf000
mmap(0x7f45bffc6000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c000) = 0x7f45bffc6000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libmount.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=404096, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 402872, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45bff46000
mmap(0x7f45bff52000, 262144, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xc000) = 0x7f45bff52000
mmap(0x7f45bff92000, 81920, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4c000) = 0x7f45bff92000
mmap(0x7f45bffa6000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x60000) = 0x7f45bffa6000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=174312, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 186064, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45bff18000
mmap(0x7f45bff1f000, 110592, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f45bff1f000
mmap(0x7f45bff3a000, 32768, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x22000) = 0x7f45bff3a000
mmap(0x7f45bff42000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x29000) = 0x7f45bff42000
mmap(0x7f45bff44000, 5840, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f45bff44000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpcre2-8.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=629384, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 627592, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45bfe7e000
mmap(0x7f45bfe80000, 438272, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f45bfe80000
mmap(0x7f45bfeeb000, 176128, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6d000) = 0x7f45bfeeb000
mmap(0x7f45bff16000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x98000) = 0x7f45bff16000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libbsd.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=84840, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f45c080b000
mmap(NULL, 86224, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45bfe68000
mmap(0x7f45bfe6c000, 49152, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4000) = 0x7f45bfe6c000
mmap(0x7f45bfe78000, 12288, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10000) = 0x7f45bfe78000
mmap(0x7f45bfe7b000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13000) = 0x7f45bfe7b000
mmap(0x7f45bfe7d000, 208, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f45bfe7d000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libblkid.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=355328, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 354104, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45bfe11000
mmap(0x7f45bfe1a000, 221184, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x9000) = 0x7f45bfe1a000
mmap(0x7f45bfe50000, 69632, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3f000) = 0x7f45bfe50000
mmap(0x7f45bfe61000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x50000) = 0x7f45bfe61000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libmd.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) = 832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=47312, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 49384, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f45bfbf3000
mmap(0x7f45bfbf5000, 28672, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f45bfbf5000
mmap(0x7f45bfbfc000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x9000) = 0x7f45bfbfc000
mmap(0x7f45bfbfe000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7f45bfbfe000
close(3)                                = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f45c0809000
mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f45c0806000
arch_prctl(ARCH_SET_FS, 0x7f45c0806840) = 0
set_tid_address(0x7f45c0806b10)         = 2611641
set_robust_list(0x7f45c0806b20, 24)     = 0
rseq(0x7f45c0807160, 0x20, 0, 0x53053053) = 0
mprotect(0x7f45c0196000, 16384, PROT_READ) = 0
mprotect(0x7f45bfbfe000, 4096, PROT_READ) = 0
mprotect(0x7f45bfe61000, 24576, PROT_READ) = 0
mprotect(0x7f45bfe7b000, 4096, PROT_READ) = 0
mprotect(0x7f45bff16000, 4096, PROT_READ) = 0
mprotect(0x7f45bff42000, 4096, PROT_READ) = 0
mprotect(0x7f45bffa6000, 8192, PROT_READ) = 0
mprotect(0x7f45bffc6000, 4096, PROT_READ) = 0
mprotect(0x7f45c0287000, 4096, PROT_READ) = 0
mprotect(0x7f45c03be000, 4096, PROT_READ) = 0
mprotect(0x7f45c0811000, 4096, PROT_READ) = 0
mprotect(0x7f45c082d000, 4096, PROT_READ) = 0
mprotect(0x7f45bfe04000, 4096, PROT_READ) = 0
mprotect(0x7f45c09bf000, 4096, PROT_READ) = 0
mprotect(0x7f45c0980000, 4096, PROT_READ) = 0
mprotect(0x7f45c0828000, 4096, PROT_READ) = 0
mprotect(0x7f45c0839000, 4096, PROT_READ) = 0
mprotect(0x7f45c0840000, 4096, PROT_READ) = 0
mprotect(0x7f45c041c000, 12288, PROT_READ) = 0
mprotect(0x7f45c05f4000, 36864, PROT_READ) = 0
mprotect(0x7f45c0804000, 4096, PROT_READ) = 0
mprotect(0x7f45c0995000, 4096, PROT_READ) = 0
mprotect(0x7f45c09d0000, 8192, PROT_READ) = 0
mprotect(0x7f45c09e7000, 4096, PROT_READ) = 0
mprotect(0x558d3ee2a000, 4096, PROT_READ) = 0
mprotect(0x7f45c0a34000, 8192, PROT_READ) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
munmap(0x7f45c09e9000, 95607)           = 0
statfs("/sys/fs/selinux", 0x7fff87568ac0) = -1 ENOENT (No such file or directory)
statfs("/selinux", 0x7fff87568ac0)      = -1 ENOENT (No such file or directory)
getrandom("\xa6\xd0\x41\xa1\x65\x9d\x0b\xfa", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x558d78d77000
brk(0x558d78d98000)                     = 0x558d78d98000
openat(AT_FDCWD, "/proc/filesystems", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0444, st_size=0, ...}, AT_EMPTY_PATH) = 0
read(3, "nodev\tsysfs\nnodev\ttmpfs\nnodev\tbd"..., 1024) = 383
read(3, "", 1024)                       = 0
close(3)                                = 0
access("/etc/selinux/config", F_OK)     = -1 ENOENT (No such file or directory)
futex(0x7f45c03bffe8, FUTEX_WAKE_PRIVATE, 2147483647) = 0
futex(0x7f45c03bffe8, FUTEX_WAKE_PRIVATE, 2147483647) = 0
openat(AT_FDCWD, "/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=3048928, ...}, AT_EMPTY_PATH) = 0
mmap(NULL, 3048928, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f45bf800000
close(3)                                = 0
openat(AT_FDCWD, "/tmp/redshift.conf", O_RDONLY) = -1 EACCES (Permission denied)
dup(2)                                  = 3
fcntl(3, F_GETFL)                       = 0x80002 (flags O_RDWR|O_CLOEXEC)
openat(AT_FDCWD, "/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 4
newfstatat(4, "", {st_mode=S_IFREG|0644, st_size=2996, ...}, AT_EMPTY_PATH) = 0
read(4, "# Locale name alias data base.\n#"..., 4096) = 2996
read(4, "", 4096)                       = 0
close(4)                                = 0
openat(AT_FDCWD, "/usr/share/locale/en_US.UTF-8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en_US.utf8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en_US/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en.UTF-8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en.utf8/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
newfstatat(3, "", {st_mode=S_IFCHR|0620, st_rdev=makedev(0x88, 0x3), ...}, AT_EMPTY_PATH) = 0
write(3, "fopen: Permission denied\n", 25) = 25
close(3)                                = 0
newfstatat(2, "", {st_mode=S_IFCHR|0620, st_rdev=makedev(0x88, 0x3), ...}, AT_EMPTY_PATH) = 0
write(2, "Unable to load config file.\n", 28) = 28
exit_group(1)                           = ?
+++ exited with 1 +++

• I have checked the FAQ and my issue is not mention there.

Software versions (please complete the following information):

• OS: Debian Bookworm 12.2.0-14+deb12u1.
• Redshift version: 1.12, installed from: apt.

[autostatic]

This is probably because AppArmor only allows reading the conf file from $HOME/.config/redshift.conf. You could change that path in /etc/apparmor.d/usr.bin.redshift or move the conf file to $HOME/.config/redshift.conf.

[hartwork]

@OgalFinklestein please see issue #912 🙏