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Problems_Found
Eugene Shatokhin edited this page Jul 29, 2015
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The examples of real problems in the Linux kernel modules found with the help of KEDR-based tools are shown below.
| Component | Problem Summary | Reported to | Status |
|---|---|---|---|
| Linux kernel, Ext4 FS module | NPD when using sb->s_fs_info during clean-up after a failed mount | Kernel Bug Tracker, bug #26752 | confirmed, fixed in the kernel version 2.6.39-rc1 |
| Linux kernel, Ext4 FS module | Calling kfree() for uninitialized pointer in ext4_mb_init_backend() | Kernel Bug Tracker, bug #30872 | confirmed, fixed in the kernel version 2.6.39-rc1 |
| VirtualBox, Guest Additions | Memory leak in sf_lookup | VirtualBox bug tracker, ticket #7705 | confirmed, fixed in VirtualBox 3.2.12 |
| VirtualBox, Guest Additions | g_vbgldata.mutexHGCMHandle is never destroyed | VirtualBox bug tracker, ticket #7720 | confirmed, fixed in VirtualBox 3.2.12 |
| VirtualBox, Guest Additions | Possible memory leak in sf_follow_link | VirtualBox bug tracker, ticket #8185 | confirmed, fixed in VirtualBox 4.0.4 |
| Linux kernel, FAT FS module | Memory allocation failure is not handled in fat_cache_add() | Kernel Bug Tracker, bug #24622 | confirmed, fixed in the kernel version 3.0 |
| Linux kernel, ath5k module (wireless networking) | Memory kcalloc'ed in ath5k_eeprom_convert_pcal_info_``*() is not always kfree'd |
Kernel Bug Tracker, bug #32722 | confirmed, fixed in the kernel version 3.0 |
| Linux kernel, ath5k module (wireless networking) | (ath5k) Not all elements of chinfo[pier].pd_curves[``] are freed |
Kernel Bug Tracker, bug #32942 | confirmed, fixed in the kernel version 3.0 |
| Linux kernel, ath5k module (wireless networking) | (ath5k) sc->ah is allocated in ath5k_init_softc() but is not freed | Kernel Bug Tracker, bug #37592 | confirmed, fixed in the kernel version 3.1-rc1 |
| Linux kernel, Btrfs module | Possible memory leak in btrfs kernel module during xfstests test 002 | Kernel Bug Tracker, bug #47101 | not confirmed yet |
| Linux kernel, Ext4 FS module | ext4_fill_super() reports success even if ext4_mb_init() fails | ext4 mailing list: thread | confirmed |
| Linux kernel, XFS module | 'xfs_uuid_table' allocated in xfs_uuid_mount() is never freed | Kernel Bug Tracker, bug #48651 | not confirmed yet |