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import: check overflow

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Fixes CID#1548022 and CID#1548075.

(cherry picked from commit f7012a93a7f04fa29c7933a4963aa17fcf120e97)
(cherry picked from commit 11c15905cd4759b89a1da63d05772c1f7c3744a4)
(cherry picked from commit a920cc9b3a8fc8b9ee57fa5c4a30d9234eb7a819)
(cherry picked from commit ff17a1023e2715ee5f54cc741b47e1eb1c444f35)
This commit is contained in:
Yu Watanabe 2024-08-01 12:03:54 +09:00 committed by Luca Boccassi
parent 9d9458a00e
commit 2d261daa16
2 changed files with 10 additions and 0 deletions
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5
src/import/import-raw.c
View File

@ -408,6 +408,11 @@ static int raw_import_process(RawImport *i) {
goto finish;
}
if ((size_t) l > sizeof(i->buffer) - i->buffer_size) {
r = log_error_errno(SYNTHETIC_ERRNO(EBADMSG), "Read input file exceeded maximum size.");
goto finish;
}
i->buffer_size += l;
if (i->compress.type == IMPORT_COMPRESS_UNKNOWN) {

5
src/import/import-tar.c
View File

@ -275,6 +275,11 @@ static int tar_import_process(TarImport *i) {
goto finish;
}
if ((size_t) l > sizeof(i->buffer) - i->buffer_size) {
r = log_error_errno(SYNTHETIC_ERRNO(EBADMSG), "Read input file exceeded maximum size.");
goto finish;
}
i->buffer_size += l;
if (i->compress.type == IMPORT_COMPRESS_UNKNOWN) {