Kernel

Kconfig: Make config Filter access to /dev/mem default y
Xiaotian Feng wrote: Have you ever successfully attack by this way? If CONFIG_STRICT_DEVMEM is not set, the /dev/mem access is filtered in pat code. If that option doesn't add any protection, what's it good for? ... 15 Apr 2010 10:16

[Question] integrating KDB with linux kernel
How to integrate KDB with linux-kernel ?? What I did was as follow: 1. Used linux-2.6.21.7.tar.gz 2. Downloaded corresponding kdb from "oss.sgi" site kdb-v4.4-2.6.21-common-3.bz2 kdb-v4.4-2.6.21-i386-3.bz2 3. build the kernel by enabling CONFIG_KDB and CONFIG_FRAME_POINTER as desc... 15 Apr 2010 02:39

linux-next: boot failure after merge of the final tree (tip related)
Hi all, Yesterday's (and today's) linux-next boot (PowerPC) failed like this: ------------[ cut here ]------------ Badness at kernel/lockdep.c:2301 NIP: c0000000000a35c8 LR: c0000000000084c4 CTR: 0000000000000000 REGS: c000000000bf77e0 TRAP: 0700 Not tainted (2.6.34-rc4-autokern1) MSR: 8000000000021032 <ME... 15 Apr 2010 03:44

LogFS: Fix oops on failed mount
On Wed, 14 April 2010 17:56:10 -0700, Kevin Cernekee wrote: logfs_kill_sb() calls mempool_destroy() on super->s_alias_pool . But if logfs_kill_sb() is being called because the mount failed (e.g. __logfs_read_sb() returned -EIO) this pointer will still be NULL, resulting in a kernel oops. Signed-... 15 Apr 2010 02:39

Kconfig: Make config Filter access to /dev/mem default y
On Tue, Apr 13, 2010 at 10:52 AM, <wzt.wzt(a)gmail.com> wrote: Recently, most company start use >=2.6.31 kernels to replace redhat kernels. But the config "Filter access to /dev/mem" is "default n", that allows kernel rootkit using /dev/mem again. it could access all kernel memory default. Most administrator... 15 Apr 2010 03:44

[PATCH 3/3 ] SCSI: Support Type C RAID controller
1. To support Type C RAID controller, ACB_ADAPTER_TYPE_C, i.e. PCI device ID: 0x1880. Signed-off-by: Nick Cheng< nick.cheng(a)areca.com.tw > --- ... 15 Apr 2010 02:39

[PATCH 1/3 ] SCSI: Support HW reset for EH and polling scheme for scsi device
1. To support instantaneous report for SCSI device existing by periodic polling 2. In arcmsr_iop_xfer(), inform AP of F/W's deadlock state to prevent endless waiting 3. To block the coming SCSI command while the driver is handling bus reset 4. To support HW reset in bus reset error handler Signed-off-by: Nick Che... 15 Apr 2010 02:39

[RFC][PATCH] Security: fix cap_file_mmap() off-by-one error to avoid kernel null pointer exploit
when addr < dac_mmap_min_addr, cap_file_mmap() will check the process CAP_SYS_RAWIO capability. some code from kernel null pointer exploit: if ((personality(0xffffffff)) != PER_SVR4) { if ((page = mmap(0x0, 0x1000, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_ANONYMOUS| MAP_PRIVATE, 0, 0))... 15 Apr 2010 02:39

[PATCH] blkio: Fix linux-next build failure after merge of block tree
After merging the block tree, 20100414's linux-next build (x86_64 allmodconfig) failed like this: ERROR: "get_gendisk" [block/blk-cgroup.ko] undefined! ERROR: "sched_clock" [block/blk-cgroup.ko] undefined! This happens because the two symbols aren't exported and hence not available when blk-cgroup code is buil... 15 Apr 2010 02:39

[PATCH 4/4] vmscan: delegate page cleaning io to flusher thread if VM pressure is low
Even if pageout() is called from direct reclaim, we can delegate io to flusher thread if vm pressure is low. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com> --- mm/vmscan.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 8b78b49..... 15 Apr 2010 00:29