qiurui
/
glibc
mirror of git://sourceware.org/git/glibc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

nptl: Fix SYSCALL_CANCEL for return values larger than INT_MAX (BZ 33245) 

The SYSCALL_CANCEL calls __syscall_cancel, which in turn
calls __internal_syscall_cancel with an 'int' return instead of the
expected 'long int'.  This causes issues with syscalls that return
values larger than INT_MAX, such as copy_file_range [1].

Checked on x86_64-linux-gnu.

[1] https://debbugs.gnu.org/cgi/bugreport.cgi?bug=79139

Reviewed-by: Andreas K. Huettel <dilfridge@gentoo.org>
This commit is contained in:
Adhemerval Zanella 2025-08-01 15:00:25 -03:00
parent cf91048748
commit 7107bebf19
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
nptl/cancellation.c
View File

@ -72,8 +72,8 @@ __syscall_cancel (__syscall_arg_t a1, __syscall_arg_t a2,
__syscall_arg_t a5, __syscall_arg_t a6,
__SYSCALL_CANCEL7_ARG_DEF __syscall_arg_t nr)
{
int r = __internal_syscall_cancel (a1, a2, a3, a4, a5, a6,
__SYSCALL_CANCEL7_ARG nr);
long int r = __internal_syscall_cancel (a1, a2, a3, a4, a5, a6,
__SYSCALL_CANCEL7_ARG nr);
return __glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (r))
? SYSCALL_ERROR_LABEL (INTERNAL_SYSCALL_ERRNO (r))
: r;