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conf, passt, tap: Open socket and PID files before switching UID/GID

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Otherwise, if the user runs us as root, and gives us paths that are
only accessible by root, we'll fail to open them, which might in turn
encourage users to change permissions or ownerships: definitely a bad
idea in terms of security.

Reported-by: Minxi Hou <mhou@redhat.com>
Reported-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Richard W.M. Jones <rjones@redhat.com>
This commit is contained in:
Stefano Brivio
2024-05-22 20:18:19 +02:00
parent ba23b05545
commit c9b2413465
5 changed files with 28 additions and 11 deletions
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tap.h
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@@ -68,6 +68,7 @@ void tap_handler_pasta(struct ctx *c, uint32_t events,
const struct timespec *now);
void tap_handler_passt(struct ctx *c, uint32_t events,
const struct timespec *now);
int tap_sock_unix_open(char *sock_path);
void tap_sock_init(struct ctx *c);
#endif /* TAP_H */