sctp: Fix COMM_LOST/CANT_STR_ASSOC err reporting on big-endian platforms
[ Upstream commit b6df8c81412190fbd5eaa3cec7f642142d9c16cd ] Commit978aa04741
("sctp: fix some type cast warnings introduced since very beginning")' broke err reading from sctp_arg, because it reads the value as 32-bit integer, although the value is stored as 16-bit integer. Later this value is passed to the userspace in 16-bit variable, thus the user always gets 0 on big-endian platforms. Fix it by reading the __u16 field of sctp_arg union, as reading err field would produce a sparse warning. Fixes:978aa04741
("sctp: fix some type cast warnings introduced since very beginning") Signed-off-by: Petr Malat <oss@malat.biz> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Link: https://lore.kernel.org/r/20201030132633.7045-1-oss@malat.biz Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 2 additions and 2 deletions
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@ -1615,12 +1615,12 @@ static int sctp_cmd_interpreter(enum sctp_event event_type,
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break;
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case SCTP_CMD_INIT_FAILED:
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sctp_cmd_init_failed(commands, asoc, cmd->obj.u32);
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sctp_cmd_init_failed(commands, asoc, cmd->obj.u16);
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break;
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case SCTP_CMD_ASSOC_FAILED:
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sctp_cmd_assoc_failed(commands, asoc, event_type,
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subtype, chunk, cmd->obj.u32);
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subtype, chunk, cmd->obj.u16);
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break;
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case SCTP_CMD_INIT_COUNTER_INC:
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