| Message ID | 20210804150951.116814-1-colin.king@canonical.com (mailing list archive) |
|---|---|
| State | Awaiting Upstream |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | Bluetooth: increase BTNAMSIZ to 21 chars to fix potential buffer overflow | expand |
| Context | Check | Description |
|---|---|---|
| netdev/cover_letter | success | Link |
| netdev/fixes_present | success | Link |
| netdev/patch_count | success | Link |
| netdev/tree_selection | success | Guessed tree name to be net-next |
| netdev/subject_prefix | warning | Target tree name not specified in the subject |
| netdev/cc_maintainers | success | CCed 11 of 11 maintainers |
| netdev/source_inline | success | Was 0 now: 0 |
| netdev/verify_signedoff | success | Link |
| netdev/module_param | success | Was 0 now: 0 |
| netdev/build_32bit | success | Errors and warnings before: 0 this patch: 0 |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/verify_fixes | success | Link |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 8 lines checked |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 0 this patch: 0 |
| netdev/header_inline | success | Link |
Hi Colin, > An earlier commit replaced using batostr to using %pMR sprintf for the > construction of session->name. Static analysis detected that this new > method can use a total of 21 characters (including the trailing '\0') > so we need to increase the BTNAMSIZ from 18 to 21 to fix potential > buffer overflows. > > Addresses-Coverity: ("Out-of-bounds write") > Fixes: fcb73338ed53 ("Bluetooth: Use %pMR in sprintf/seq_printf instead of batostr") > Signed-off-by: Colin Ian King <colin.king@canonical.com> > --- > net/bluetooth/cmtp/cmtp.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) patch has been applied to bluetooth-next tree. Regards Marcel
diff --git a/net/bluetooth/cmtp/cmtp.h b/net/bluetooth/cmtp/cmtp.h index c32638dddbf9..f6b9dc4e408f 100644 --- a/net/bluetooth/cmtp/cmtp.h +++ b/net/bluetooth/cmtp/cmtp.h @@ -26,7 +26,7 @@ #include <linux/types.h> #include <net/bluetooth/bluetooth.h> -#define BTNAMSIZ 18 +#define BTNAMSIZ 21 /* CMTP ioctl defines */ #define CMTPCONNADD _IOW('C', 200, int)