[PATCH] ioctl_tty.2: Document CAP_SYS_ADMIN requirement for TIOCSTI

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Cc: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Günther Noack <gnoack@xxxxxxxxxx>
---
 man2/ioctl_tty.2 | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/man2/ioctl_tty.2 b/man2/ioctl_tty.2
index 85577f80f..ebad97bcf 100644
--- a/man2/ioctl_tty.2
+++ b/man2/ioctl_tty.2
@@ -334,6 +334,15 @@ Argument:
 .BI "const char\~*" argp
 .IP
 Insert the given byte in the input queue.
+.IP
+Since Linux 6.2,
+.\" commit 690c8b804ad2eafbd35da5d3c95ad325ca7d5061
+.\" commit 83efeeeb3d04b22aaed1df99bc70a48fe9d22c4d
+this operation may require the
+.B CAP_SYS_ADMIN
+capability (if the
+.I dev.tty.legacy_tiocsti
+sysctl variable is set to false).
 .SS Redirecting console output
 .TP
 .B TIOCCONS
-- 
2.42.0.283.g2d96d420d3-goog





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