Messages in this thread Patch in this message | | | Date | Wed, 12 May 2004 19:50:38 +0300 | From | Oleg Drokin <> | Subject | [PATCH] [2.6] Make reiserfs not to crash on oom |
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Hello!
Thanks to Standford guys, a case where reiserfs can dereference NULL pointer if memory allocation fail during mount was identified.
Here's 2.6 version of patch.
Bye, Oleg
===== fs/reiserfs/journal.c 1.91 vs edited ===== --- 1.91/fs/reiserfs/journal.c Mon May 10 14:25:42 2004 +++ edited/fs/reiserfs/journal.c Wed May 12 19:28:18 2004 @@ -2260,8 +2260,10 @@ INIT_LIST_HEAD (&SB_JOURNAL(p_s_sb)->j_prealloc_list); INIT_LIST_HEAD(&SB_JOURNAL(p_s_sb)->j_working_list); INIT_LIST_HEAD(&SB_JOURNAL(p_s_sb)->j_journal_list); - reiserfs_allocate_list_bitmaps(p_s_sb, SB_JOURNAL(p_s_sb)->j_list_bitmap, - SB_BMAP_NR(p_s_sb)) ; + if (reiserfs_allocate_list_bitmaps(p_s_sb, + SB_JOURNAL(p_s_sb)->j_list_bitmap, + SB_BMAP_NR(p_s_sb))) + goto free_and_return ; allocate_bitmap_nodes(p_s_sb) ; /* reserved for journal area support */ - 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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