Messages in this thread Patch in this message | | | Date | Wed, 22 Jan 2003 21:26:40 +0100 | Subject | patch for open file handles with initrd in 2.4.20 | From | (Russell Coker) |
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The following patch was back-ported from 2.5.x by Stephen Smalley to fix a problem where the file handle of the root of the initrd is inherited by init and other processes.
The bug was discovered when running SE Linux on 2.4.20 systems with a policy that denied such inheriting of file handles and logged the operations it denied.
This patch has been well tested, please include it in 2.4.21.
--- linux-2.4.20.lsm-old/init/do_mounts.c 2002-12-13 19:33:23.000000000 +0100 +++ linux-2.4.20.lsm/init/do_mounts.c 2002-12-13 19:36:48.000000000 +0100 @@ -812,6 +812,8 @@ /* switch root and cwd back to / of rootfs */ sys_fchdir(root_fd); sys_chroot("."); + close(old_fd); + close(root_fd); sys_umount("/old/dev", 0); if (real_root_dev == ram0) { - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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