History log of /openbmc/linux/fs/btrfs/ref-verify.c (Results 1 – 25 of 323)
Revision (<<< Hide revision tags) (Show revision tags >>>) Date Author Comments
Revision tags: v6.6.67, v6.6.66, v6.6.65
# ecc23d0a 09-Dec-2024 Andrew Jeffery <andrew@codeconstruct.com.au>

Merge tag 'v6.6.64' into for/openbmc/dev-6.6

This is the 6.6.64 stable release


Revision tags: v6.6.64, v6.6.63, v6.6.62
# 4275ac27 15-Nov-2024 Filipe Manana <fdmanana@suse.com>

btrfs: ref-verify: fix use-after-free after invalid ref action

[ Upstream commit 7c4e39f9d2af4abaf82ca0e315d1fd340456620f ]

At btrfs_ref_tree_mod() after we successfully inserted the new ref entry

btrfs: ref-verify: fix use-after-free after invalid ref action

[ Upstream commit 7c4e39f9d2af4abaf82ca0e315d1fd340456620f ]

At btrfs_ref_tree_mod() after we successfully inserted the new ref entry
(local variable 'ref') into the respective block entry's rbtree (local
variable 'be'), if we find an unexpected action of BTRFS_DROP_DELAYED_REF,
we error out and free the ref entry without removing it from the block
entry's rbtree. Then in the error path of btrfs_ref_tree_mod() we call
btrfs_free_ref_cache(), which iterates over all block entries and then
calls free_block_entry() for each one, and there we will trigger a
use-after-free when we are called against the block entry to which we
added the freed ref entry to its rbtree, since the rbtree still points
to the block entry, as we didn't remove it from the rbtree before freeing
it in the error path at btrfs_ref_tree_mod(). Fix this by removing the
new ref entry from the rbtree before freeing it.

Syzbot report this with the following stack traces:

BTRFS error (device loop0 state EA): Ref action 2, root 5, ref_root 0, parent 8564736, owner 0, offset 0, num_refs 18446744073709551615
__btrfs_mod_ref+0x7dd/0xac0 fs/btrfs/extent-tree.c:2523
update_ref_for_cow+0x9cd/0x11f0 fs/btrfs/ctree.c:512
btrfs_force_cow_block+0x9f6/0x1da0 fs/btrfs/ctree.c:594
btrfs_cow_block+0x35e/0xa40 fs/btrfs/ctree.c:754
btrfs_search_slot+0xbdd/0x30d0 fs/btrfs/ctree.c:2116
btrfs_insert_empty_items+0x9c/0x1a0 fs/btrfs/ctree.c:4314
btrfs_insert_empty_item fs/btrfs/ctree.h:669 [inline]
btrfs_insert_orphan_item+0x1f1/0x320 fs/btrfs/orphan.c:23
btrfs_orphan_add+0x6d/0x1a0 fs/btrfs/inode.c:3482
btrfs_unlink+0x267/0x350 fs/btrfs/inode.c:4293
vfs_unlink+0x365/0x650 fs/namei.c:4469
do_unlinkat+0x4ae/0x830 fs/namei.c:4533
__do_sys_unlinkat fs/namei.c:4576 [inline]
__se_sys_unlinkat fs/namei.c:4569 [inline]
__x64_sys_unlinkat+0xcc/0xf0 fs/namei.c:4569
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BTRFS error (device loop0 state EA): Ref action 1, root 5, ref_root 5, parent 0, owner 260, offset 0, num_refs 1
__btrfs_mod_ref+0x76b/0xac0 fs/btrfs/extent-tree.c:2521
update_ref_for_cow+0x96a/0x11f0
btrfs_force_cow_block+0x9f6/0x1da0 fs/btrfs/ctree.c:594
btrfs_cow_block+0x35e/0xa40 fs/btrfs/ctree.c:754
btrfs_search_slot+0xbdd/0x30d0 fs/btrfs/ctree.c:2116
btrfs_lookup_inode+0xdc/0x480 fs/btrfs/inode-item.c:411
__btrfs_update_delayed_inode+0x1e7/0xb90 fs/btrfs/delayed-inode.c:1030
btrfs_update_delayed_inode fs/btrfs/delayed-inode.c:1114 [inline]
__btrfs_commit_inode_delayed_items+0x2318/0x24a0 fs/btrfs/delayed-inode.c:1137
__btrfs_run_delayed_items+0x213/0x490 fs/btrfs/delayed-inode.c:1171
btrfs_commit_transaction+0x8a8/0x3740 fs/btrfs/transaction.c:2313
prepare_to_relocate+0x3c4/0x4c0 fs/btrfs/relocation.c:3586
relocate_block_group+0x16c/0xd40 fs/btrfs/relocation.c:3611
btrfs_relocate_block_group+0x77d/0xd90 fs/btrfs/relocation.c:4081
btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3377
__btrfs_balance+0x1b0f/0x26b0 fs/btrfs/volumes.c:4161
btrfs_balance+0xbdc/0x10c0 fs/btrfs/volumes.c:4538
BTRFS error (device loop0 state EA): Ref action 2, root 5, ref_root 0, parent 8564736, owner 0, offset 0, num_refs 18446744073709551615
__btrfs_mod_ref+0x7dd/0xac0 fs/btrfs/extent-tree.c:2523
update_ref_for_cow+0x9cd/0x11f0 fs/btrfs/ctree.c:512
btrfs_force_cow_block+0x9f6/0x1da0 fs/btrfs/ctree.c:594
btrfs_cow_block+0x35e/0xa40 fs/btrfs/ctree.c:754
btrfs_search_slot+0xbdd/0x30d0 fs/btrfs/ctree.c:2116
btrfs_lookup_inode+0xdc/0x480 fs/btrfs/inode-item.c:411
__btrfs_update_delayed_inode+0x1e7/0xb90 fs/btrfs/delayed-inode.c:1030
btrfs_update_delayed_inode fs/btrfs/delayed-inode.c:1114 [inline]
__btrfs_commit_inode_delayed_items+0x2318/0x24a0 fs/btrfs/delayed-inode.c:1137
__btrfs_run_delayed_items+0x213/0x490 fs/btrfs/delayed-inode.c:1171
btrfs_commit_transaction+0x8a8/0x3740 fs/btrfs/transaction.c:2313
prepare_to_relocate+0x3c4/0x4c0 fs/btrfs/relocation.c:3586
relocate_block_group+0x16c/0xd40 fs/btrfs/relocation.c:3611
btrfs_relocate_block_group+0x77d/0xd90 fs/btrfs/relocation.c:4081
btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3377
__btrfs_balance+0x1b0f/0x26b0 fs/btrfs/volumes.c:4161
btrfs_balance+0xbdc/0x10c0 fs/btrfs/volumes.c:4538
==================================================================
BUG: KASAN: slab-use-after-free in rb_first+0x69/0x70 lib/rbtree.c:473
Read of size 8 at addr ffff888042d1af38 by task syz.0.0/5329

CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted 6.12.0-rc7-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x169/0x550 mm/kasan/report.c:488
kasan_report+0x143/0x180 mm/kasan/report.c:601
rb_first+0x69/0x70 lib/rbtree.c:473
free_block_entry+0x78/0x230 fs/btrfs/ref-verify.c:248
btrfs_free_ref_cache+0xa3/0x100 fs/btrfs/ref-verify.c:917
btrfs_ref_tree_mod+0x139f/0x15e0 fs/btrfs/ref-verify.c:898
btrfs_free_extent+0x33c/0x380 fs/btrfs/extent-tree.c:3544
__btrfs_mod_ref+0x7dd/0xac0 fs/btrfs/extent-tree.c:2523
update_ref_for_cow+0x9cd/0x11f0 fs/btrfs/ctree.c:512
btrfs_force_cow_block+0x9f6/0x1da0 fs/btrfs/ctree.c:594
btrfs_cow_block+0x35e/0xa40 fs/btrfs/ctree.c:754
btrfs_search_slot+0xbdd/0x30d0 fs/btrfs/ctree.c:2116
btrfs_lookup_inode+0xdc/0x480 fs/btrfs/inode-item.c:411
__btrfs_update_delayed_inode+0x1e7/0xb90 fs/btrfs/delayed-inode.c:1030
btrfs_update_delayed_inode fs/btrfs/delayed-inode.c:1114 [inline]
__btrfs_commit_inode_delayed_items+0x2318/0x24a0 fs/btrfs/delayed-inode.c:1137
__btrfs_run_delayed_items+0x213/0x490 fs/btrfs/delayed-inode.c:1171
btrfs_commit_transaction+0x8a8/0x3740 fs/btrfs/transaction.c:2313
prepare_to_relocate+0x3c4/0x4c0 fs/btrfs/relocation.c:3586
relocate_block_group+0x16c/0xd40 fs/btrfs/relocation.c:3611
btrfs_relocate_block_group+0x77d/0xd90 fs/btrfs/relocation.c:4081
btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3377
__btrfs_balance+0x1b0f/0x26b0 fs/btrfs/volumes.c:4161
btrfs_balance+0xbdc/0x10c0 fs/btrfs/volumes.c:4538
btrfs_ioctl_balance+0x493/0x7c0 fs/btrfs/ioctl.c:3673
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f996df7e719
RSP: 002b:00007f996ede7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f996e135f80 RCX: 00007f996df7e719
RDX: 0000000020000180 RSI: 00000000c4009420 RDI: 0000000000000004
RBP: 00007f996dff139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f996e135f80 R15: 00007fff79f32e68
</TASK>

Allocated by task 5329:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:257 [inline]
__kmalloc_cache_noprof+0x19c/0x2c0 mm/slub.c:4295
kmalloc_noprof include/linux/slab.h:878 [inline]
kzalloc_noprof include/linux/slab.h:1014 [inline]
btrfs_ref_tree_mod+0x264/0x15e0 fs/btrfs/ref-verify.c:701
btrfs_free_extent+0x33c/0x380 fs/btrfs/extent-tree.c:3544
__btrfs_mod_ref+0x7dd/0xac0 fs/btrfs/extent-tree.c:2523
update_ref_for_cow+0x9cd/0x11f0 fs/btrfs/ctree.c:512
btrfs_force_cow_block+0x9f6/0x1da0 fs/btrfs/ctree.c:594
btrfs_cow_block+0x35e/0xa40 fs/btrfs/ctree.c:754
btrfs_search_slot+0xbdd/0x30d0 fs/btrfs/ctree.c:2116
btrfs_lookup_inode+0xdc/0x480 fs/btrfs/inode-item.c:411
__btrfs_update_delayed_inode+0x1e7/0xb90 fs/btrfs/delayed-inode.c:1030
btrfs_update_delayed_inode fs/btrfs/delayed-inode.c:1114 [inline]
__btrfs_commit_inode_delayed_items+0x2318/0x24a0 fs/btrfs/delayed-inode.c:1137
__btrfs_run_delayed_items+0x213/0x490 fs/btrfs/delayed-inode.c:1171
btrfs_commit_transaction+0x8a8/0x3740 fs/btrfs/transaction.c:2313
prepare_to_relocate+0x3c4/0x4c0 fs/btrfs/relocation.c:3586
relocate_block_group+0x16c/0xd40 fs/btrfs/relocation.c:3611
btrfs_relocate_block_group+0x77d/0xd90 fs/btrfs/relocation.c:4081
btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3377
__btrfs_balance+0x1b0f/0x26b0 fs/btrfs/volumes.c:4161
btrfs_balance+0xbdc/0x10c0 fs/btrfs/volumes.c:4538
btrfs_ioctl_balance+0x493/0x7c0 fs/btrfs/ioctl.c:3673
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 5329:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:2342 [inline]
slab_free mm/slub.c:4579 [inline]
kfree+0x1a0/0x440 mm/slub.c:4727
btrfs_ref_tree_mod+0x136c/0x15e0
btrfs_free_extent+0x33c/0x380 fs/btrfs/extent-tree.c:3544
__btrfs_mod_ref+0x7dd/0xac0 fs/btrfs/extent-tree.c:2523
update_ref_for_cow+0x9cd/0x11f0 fs/btrfs/ctree.c:512
btrfs_force_cow_block+0x9f6/0x1da0 fs/btrfs/ctree.c:594
btrfs_cow_block+0x35e/0xa40 fs/btrfs/ctree.c:754
btrfs_search_slot+0xbdd/0x30d0 fs/btrfs/ctree.c:2116
btrfs_lookup_inode+0xdc/0x480 fs/btrfs/inode-item.c:411
__btrfs_update_delayed_inode+0x1e7/0xb90 fs/btrfs/delayed-inode.c:1030
btrfs_update_delayed_inode fs/btrfs/delayed-inode.c:1114 [inline]
__btrfs_commit_inode_delayed_items+0x2318/0x24a0 fs/btrfs/delayed-inode.c:1137
__btrfs_run_delayed_items+0x213/0x490 fs/btrfs/delayed-inode.c:1171
btrfs_commit_transaction+0x8a8/0x3740 fs/btrfs/transaction.c:2313
prepare_to_relocate+0x3c4/0x4c0 fs/btrfs/relocation.c:3586
relocate_block_group+0x16c/0xd40 fs/btrfs/relocation.c:3611
btrfs_relocate_block_group+0x77d/0xd90 fs/btrfs/relocation.c:4081
btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3377
__btrfs_balance+0x1b0f/0x26b0 fs/btrfs/volumes.c:4161
btrfs_balance+0xbdc/0x10c0 fs/btrfs/volumes.c:4538
btrfs_ioctl_balance+0x493/0x7c0 fs/btrfs/ioctl.c:3673
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888042d1af00
which belongs to the cache kmalloc-64 of size 64
The buggy address is located 56 bytes inside of
freed 64-byte region [ffff888042d1af00, ffff888042d1af40)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x42d1a
anon flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 04fff00000000000 ffff88801ac418c0 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000200020 00000001f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5055, tgid 5055 (dhcpcd-run-hook), ts 40377240074, free_ts 40376848335
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1541
prep_new_page mm/page_alloc.c:1549 [inline]
get_page_from_freelist+0x3649/0x3790 mm/page_alloc.c:3459
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4735
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
alloc_slab_page+0x6a/0x140 mm/slub.c:2412
allocate_slab+0x5a/0x2f0 mm/slub.c:2578
new_slab mm/slub.c:2631 [inline]
___slab_alloc+0xcd1/0x14b0 mm/slub.c:3818
__slab_alloc+0x58/0xa0 mm/slub.c:3908
__slab_alloc_node mm/slub.c:3961 [inline]
slab_alloc_node mm/slub.c:4122 [inline]
__do_kmalloc_node mm/slub.c:4263 [inline]
__kmalloc_noprof+0x25a/0x400 mm/slub.c:4276
kmalloc_noprof include/linux/slab.h:882 [inline]
kzalloc_noprof include/linux/slab.h:1014 [inline]
tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
tomoyo_encode+0x26f/0x540 security/tomoyo/realpath.c:80
tomoyo_realpath_from_path+0x59e/0x5e0 security/tomoyo/realpath.c:283
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x255/0x500 security/tomoyo/file.c:771
security_file_open+0x777/0x990 security/security.c:3109
do_dentry_open+0x369/0x1460 fs/open.c:945
vfs_open+0x3e/0x330 fs/open.c:1088
do_open fs/namei.c:3774 [inline]
path_openat+0x2c84/0x3590 fs/namei.c:3933
page last free pid 5055 tgid 5055 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1112 [inline]
free_unref_page+0xcfb/0xf20 mm/page_alloc.c:2642
free_pipe_info+0x300/0x390 fs/pipe.c:860
put_pipe_info fs/pipe.c:719 [inline]
pipe_release+0x245/0x320 fs/pipe.c:742
__fput+0x23f/0x880 fs/file_table.c:431
__do_sys_close fs/open.c:1567 [inline]
__se_sys_close fs/open.c:1552 [inline]
__x64_sys_close+0x7f/0x110 fs/open.c:1552
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
ffff888042d1ae00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff888042d1ae80: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
>ffff888042d1af00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff888042d1af80: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
ffff888042d1b000: 00 00 00 00 00 fc fc 00 00 00 00 00 fc fc 00 00

Reported-by: syzbot+7325f164162e200000c1@syzkaller.appspotmail.com
Link: https://lore.kernel.org/linux-btrfs/673723eb.050a0220.1324f8.00a8.GAE@google.com/T/#u
Fixes: fd708b81d972 ("Btrfs: add a extent ref verify tool")
CC: stable@vger.kernel.org # 4.19+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...


Revision tags: v6.6.61, v6.6.60, v6.6.59, v6.6.58, v6.6.57, v6.6.56, v6.6.55, v6.6.54, v6.6.53, v6.6.52, v6.6.51, v6.6.50, v6.6.49, v6.6.48, v6.6.47, v6.6.46, v6.6.45, v6.6.44, v6.6.43, v6.6.42, v6.6.41, v6.6.40, v6.6.39, v6.6.38, v6.6.37, v6.6.36, v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30, v6.6.29, v6.6.28, v6.6.27, v6.6.26, v6.6.25, v6.6.24, v6.6.23
# 7d7ae873 10-Feb-2024 Andrew Jeffery <andrew@codeconstruct.com.au>

Merge tag 'v6.6.15' into dev-6.6

This is the 6.6.15 stable release


Revision tags: v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10
# 2b772a75 03-Jan-2024 Fedor Pchelkin <pchelkin@ispras.ru>

btrfs: ref-verify: free ref cache before clearing mount opt

commit f03e274a8b29d1d1c1bbd7f764766cb5ca537ab7 upstream.

As clearing REF_VERIFY mount option indicates there were some errors in a
ref-v

btrfs: ref-verify: free ref cache before clearing mount opt

commit f03e274a8b29d1d1c1bbd7f764766cb5ca537ab7 upstream.

As clearing REF_VERIFY mount option indicates there were some errors in a
ref-verify process, a ref cache is not relevant anymore and should be
freed.

btrfs_free_ref_cache() requires REF_VERIFY option being set so call
it just before clearing the mount option.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Reported-by: syzbot+be14ed7728594dc8bd42@syzkaller.appspotmail.com
Fixes: fd708b81d972 ("Btrfs: add a extent ref verify tool")
CC: stable@vger.kernel.org # 5.4+
Closes: https://lore.kernel.org/lkml/000000000000e5a65c05ee832054@google.com/
Reported-by: syzbot+c563a3c79927971f950f@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/lkml/0000000000007fe09705fdc6086c@google.com/
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Revision tags: v6.6.9, v6.6.8
# b97d6790 13-Dec-2023 Joel Stanley <joel@jms.id.au>

Merge tag 'v6.6.6' into dev-6.6

This is the 6.6.6 stable release

Signed-off-by: Joel Stanley <joel@jms.id.au>


Revision tags: v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2
# 88287582 18-Nov-2023 Bragatheswaran Manickavel <bragathemanick0908@gmail.com>

btrfs: ref-verify: fix memory leaks in btrfs_ref_tree_mod()

commit f91192cd68591c6b037da345bc9fcd5e50540358 upstream.

In btrfs_ref_tree_mod(), when !parent 're' was allocated through
kmalloc(). In

btrfs: ref-verify: fix memory leaks in btrfs_ref_tree_mod()

commit f91192cd68591c6b037da345bc9fcd5e50540358 upstream.

In btrfs_ref_tree_mod(), when !parent 're' was allocated through
kmalloc(). In the following code, if an error occurs, the execution will
be redirected to 'out' or 'out_unlock' and the function will be exited.
However, on some of the paths, 're' are not deallocated and may lead to
memory leaks.

For example: lookup_block_entry() for 'be' returns NULL, the out label
will be invoked. During that flow ref and 'ra' are freed but not 're',
which can potentially lead to a memory leak.

CC: stable@vger.kernel.org # 5.10+
Reported-and-tested-by: syzbot+d66de4cbf532749df35f@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=d66de4cbf532749df35f
Signed-off-by: Bragatheswaran Manickavel <bragathemanick0908@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Revision tags: v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1, v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46, v6.1.45, v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39, v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35, v6.1.34, v6.1.33, v6.1.32, v6.1.31, v6.1.30, v6.1.29, v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24, v6.1.23, v6.1.22, v6.1.21, v6.1.20, v6.1.19, v6.1.18, v6.1.17, v6.1.16, v6.1.15, v6.1.14, v6.1.13
# 7ae9fb1b 21-Feb-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.3 merge window.


Revision tags: v6.2, v6.1.12, v6.1.11, v6.1.10, v6.1.9, v6.1.8
# 6f849817 19-Jan-2023 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next

Backmerging into drm-misc-next to get DRM accelerator infrastructure,
which is required by ipuv driver.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


Revision tags: v6.1.7
# d0e99511 17-Jan-2023 Kalle Valo <kvalo@kernel.org>

Merge wireless into wireless-next

Due to the two cherry picked commits from wireless to wireless-next we have
several conflicts in mt76. To avoid any bugs with conflicts merge wireless into
wireless

Merge wireless into wireless-next

Due to the two cherry picked commits from wireless to wireless-next we have
several conflicts in mt76. To avoid any bugs with conflicts merge wireless into
wireless-next.

96f134dc1964 wifi: mt76: handle possible mt76_rx_token_consume failures
fe13dad8992b wifi: mt76: dma: do not increment queue head if mt76_dma_add_buf fails

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Revision tags: v6.1.6, v6.1.5, v6.0.19
# 407da561 09-Jan-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v6.2-rc3' into next

Merge with mainline to bring in timer_shutdown_sync() API.


Revision tags: v6.0.18, v6.1.4, v6.1.3, v6.0.17
# 2c55d703 03-Jan-2023 Maxime Ripard <maxime@cerno.tech>

Merge drm/drm-fixes into drm-misc-fixes

Let's start the fixes cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>


# 0d8eae7b 02-Jan-2023 Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-intel-next

Sync up with v6.2-rc1.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>


Revision tags: v6.1.2, v6.0.16
# b501d4dc 30-Dec-2022 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-gt-next

Sync after v6.2-rc1 landed in drm-next.

We need to get some dependencies in place before we can merge
the fixes series from Gwan-gyeong and Chris.

Referen

Merge drm/drm-next into drm-intel-gt-next

Sync after v6.2-rc1 landed in drm-next.

We need to get some dependencies in place before we can merge
the fixes series from Gwan-gyeong and Chris.

References: https://lore.kernel.org/all/Y6x5JCDnh2rvh4lA@intel.com/
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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# 6599e683 28-Dec-2022 Mauro Carvalho Chehab <mchehab@kernel.org>

Merge tag 'v6.2-rc1' into media_tree

Linux 6.2-rc1

* tag 'v6.2-rc1': (14398 commits)
Linux 6.2-rc1
treewide: Convert del_timer*() to timer_shutdown*()
pstore: Properly assign mem_type propert

Merge tag 'v6.2-rc1' into media_tree

Linux 6.2-rc1

* tag 'v6.2-rc1': (14398 commits)
Linux 6.2-rc1
treewide: Convert del_timer*() to timer_shutdown*()
pstore: Properly assign mem_type property
pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES
cfi: Fix CFI failure with KASAN
perf python: Fix splitting CC into compiler and options
afs: Stop implementing ->writepage()
afs: remove afs_cache_netfs and afs_zap_permits() declarations
afs: remove variable nr_servers
afs: Fix lost servers_outstanding count
ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless
ALSA: azt3328: Remove the unused function snd_azf3328_codec_outl()
gcov: add support for checksum field
test_maple_tree: add test for mas_spanning_rebalance() on insufficient data
maple_tree: fix mas_spanning_rebalance() on insufficient data
hugetlb: really allocate vma lock for all sharable vmas
kmsan: export kmsan_handle_urb
kmsan: include linux/vmalloc.h
mm/mempolicy: fix memory leak in set_mempolicy_home_node system call
mm, mremap: fix mremap() expanding vma with addr inside vma
...

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Revision tags: v6.1.1, v6.0.15, v6.0.14
# 1a931707 16-Dec-2022 Arnaldo Carvalho de Melo <acme@redhat.com>

Merge remote-tracking branch 'torvalds/master' into perf/core

To resolve a trivial merge conflict with c302378bc157f6a7 ("libbpf:
Hashmap interface update to allow both long and void* keys/values"),

Merge remote-tracking branch 'torvalds/master' into perf/core

To resolve a trivial merge conflict with c302378bc157f6a7 ("libbpf:
Hashmap interface update to allow both long and void* keys/values"),
where a function present upstream was removed in the perf tools
development tree.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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Revision tags: v6.0.13
# 149c51f8 12-Dec-2022 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'for-6.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
"This round there are a lot of cleanups and moved code so the diffstat
l

Merge tag 'for-6.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
"This round there are a lot of cleanups and moved code so the diffstat
looks huge, otherwise there are some nice performance improvements and
an update to raid56 reliability.

User visible features:

- raid56 reliability vs performance trade off:
- fix destructive RMW for raid5 data (raid6 still needs work): do
full checksum verification for all data during RMW cycle, this
should prevent rewriting potentially corrupted data without
notice
- stripes are cached in memory which should reduce the performance
impact but still can hurt some workloads
- checksums are verified after repair again
- this is the last option without introducing additional features
(write intent bitmap, journal, another tree), the extra checksum
read/verification was supposed to be avoided by the original
implementation exactly for performance reasons but that caused
all the reliability problems

- discard=async by default for devices that support it

- implement emergency flush reserve to avoid almost all unnecessary
transaction aborts due to ENOSPC in cases where there are too many
delayed refs or delayed allocation

- skip block group synchronization if there's no change in used
bytes, can reduce transaction commit count for some workloads

Performance improvements:

- fiemap and lseek:
- overall speedup due to skipping unnecessary or duplicate
searches (-40% run time)
- cache some data structures and sharedness of extents (-30% run
time)

- send:
- faster backref resolution when finding clones
- cached leaf to root mapping for faster backref walking
- improved clone/sharing detection
- overall run time improvements (-70%)

Core:

- module initialization converted to a table of function pointers run
in a sequence

- preparation for fscrypt, extend passing file names across calls,
dir item can store encryption status

- raid56 updates:
- more accurate error tracking of sectors within stripe
- simplify recovery path and remove dedicated endio worker kthread
- simplify scrub call paths
- refactoring to support the extra data checksum verification
during RMW cycle

- tree block parentness checks consolidated and done at metadata read
time

- improved error handling

- cleanups:
- move a lot of code for better synchronization between kernel and
user space sources, split big files
- enum cleanups
- GFP flag cleanups
- header file cleanups, prototypes, dependencies
- redundant parameter cleanups
- inline extent handling simplifications
- inode parameter conversion
- data structure cleanups, reductions, renames, merges"

* tag 'for-6.2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (249 commits)
btrfs: print transaction aborted messages with an error level
btrfs: sync some cleanups from progs into uapi/btrfs.h
btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range
btrfs: fix extent map use-after-free when handling missing device in read_one_chunk
btrfs: remove outdated logic from overwrite_item() and add assertion
btrfs: unify overwrite_item() and do_overwrite_item()
btrfs: replace strncpy() with strscpy()
btrfs: fix uninitialized variable in find_first_clear_extent_bit
btrfs: fix uninitialized parent in insert_state
btrfs: add might_sleep() annotations
btrfs: add stack helpers for a few btrfs items
btrfs: add nr_global_roots to the super block definition
btrfs: remove BTRFS_LEAF_DATA_OFFSET
btrfs: add helpers for manipulating leaf items and data
btrfs: add eb to btrfs_node_key_ptr_offset
btrfs: pass the extent buffer for the btrfs_item_nr helpers
btrfs: move the csum helpers into ctree.h
btrfs: move eb offset helpers into extent_io.h
btrfs: move file_extent_item helpers into file-item.h
btrfs: move leaf_data_end into ctree.c
...

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Revision tags: v6.1, v6.0.12, v6.0.11, v6.0.10, v5.15.80, v6.0.9, v5.15.79, v6.0.8, v5.15.78, v6.0.7, v5.15.77, v5.15.76, v6.0.6, v6.0.5, v5.15.75, v6.0.4, v6.0.3
# 07e81dc9 19-Oct-2022 Josef Bacik <josef@toxicpanda.com>

btrfs: move accessor helpers into accessors.h

This is a large patch, but because they're all macros it's impossible to
split up. Simply copy all of the item accessors in ctree.h and paste
them in a

btrfs: move accessor helpers into accessors.h

This is a large patch, but because they're all macros it's impossible to
split up. Simply copy all of the item accessors in ctree.h and paste
them in accessors.h, and then update any files to include the header so
everything compiles.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ reformat comments, style fixups ]
Signed-off-by: David Sterba <dsterba@suse.com>

show more ...


# fc97a410 19-Oct-2022 Josef Bacik <josef@toxicpanda.com>

btrfs: move mount option definitions to fs.h

These are fs wide definitions and helpers, move them out of ctree.h and
into fs.h.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed

btrfs: move mount option definitions to fs.h

These are fs wide definitions and helpers, move them out of ctree.h and
into fs.h.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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# 9b569ea0 19-Oct-2022 Josef Bacik <josef@toxicpanda.com>

btrfs: move the printk helpers out of ctree.h

We have a bunch of printk helpers that are in ctree.h. These have
nothing to do with ctree.c, so move them into their own header.
Subsequent patches wi

btrfs: move the printk helpers out of ctree.h

We have a bunch of printk helpers that are in ctree.h. These have
nothing to do with ctree.c, so move them into their own header.
Subsequent patches will cleanup the printk helpers.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

show more ...


Revision tags: v6.0.2, v5.15.74, v5.15.73, v6.0.1, v5.15.72, v6.0, v5.15.71, v5.15.70, v5.15.69, v5.15.68, v5.15.67, v5.15.66, v5.15.65, v5.15.64, v5.15.63, v5.15.62, v5.15.61, v5.15.60, v5.15.59, v5.19, v5.15.58, v5.15.57, v5.15.56, v5.15.55, v5.15.54, v5.15.53, v5.15.52, v5.15.51, v5.15.50, v5.15.49, v5.15.48, v5.15.47, v5.15.46, v5.15.45
# 03ab8e62 31-May-2022 Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

Merge tag 'v5.18'

Linux 5.18


Revision tags: v5.15.44, v5.15.43, v5.15.42, v5.18, v5.15.41, v5.15.40, v5.15.39, v5.15.38, v5.15.37, v5.15.36, v5.15.35, v5.15.34, v5.15.33
# de4fb176 01-Apr-2022 Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

Merge branches 'fixes' and 'misc' into for-linus


Revision tags: v5.15.32
# b690490d 23-Mar-2022 Jiri Kosina <jkosina@suse.cz>

Merge branch 'for-5.18/amd-sfh' into for-linus

- dead code elimination (Christophe JAILLET)


Revision tags: v5.15.31, v5.17, v5.15.30, v5.15.29, v5.15.28, v5.15.27, v5.15.26
# 1136fa0c 01-Mar-2022 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v5.17-rc4' into for-linus

Merge with mainline to get the Intel ASoC generic helpers header and
other changes.


Revision tags: v5.15.25
# 986c6f7c 18-Feb-2022 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v5.17-rc4' into next

Sync up with mainline to get the latest changes in HID subsystem.


Revision tags: v5.15.24, v5.15.23, v5.15.22
# 542898c5 07-Feb-2022 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Merge remote-tracking branch 'drm/drm-next' into drm-misc-next

First backmerge into drm-misc-next. Required for more helpers backmerged,
and to pull in 5.17 (rc2).

Signed-off-by: Maarten Lankhorst

Merge remote-tracking branch 'drm/drm-next' into drm-misc-next

First backmerge into drm-misc-next. Required for more helpers backmerged,
and to pull in 5.17 (rc2).

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

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