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tls: don't abort the connection on signal-interrupted sends

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When a signal interrupts a blocking send, tls_tx_records() treats the
resulting -ERESTARTSYS as a transmission failure and marks the socket
errored via tls_err_abort() with the raw error code. Later syscalls
return the kernel-internal errno 512 (ERESTARTSYS) to userspace, as the
signal it stems from is no longer pending during syscall exit and thus
never translated.

An interrupted send is not a connection error: the partially sent record
stays queued and is resent later. Interrupt error codes are therefore
excluded from the abort in the same way as -EAGAIN.

Fixes: b341ca51d2 ("tls: Fix tls_sw_sendmsg error handling")
Signed-off-by: Maximilian Immanuel Brandtner <maxbr@linux.ibm.com>
Link: https://patch.msgid.link/20260805063109.1772314-1-maxbr@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Maximilian Immanuel Brandtner 2026-08-05 08:22:48 +02:00 committed by Jakub Kicinski
parent d31c14e56a
commit af0e5cdd03
1 changed files with 1 additions and 1 deletions
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2
net/tls/tls_sw.c
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@ -458,7 +458,7 @@ int tls_tx_records(struct sock *sk, int flags)
}
tx_err:
if (rc < 0 && rc != -EAGAIN)
if (rc < 0 && rc != -EAGAIN && rc != -EINTR && rc != -ERESTARTSYS)
tls_err_abort(sk, rc);
return rc;