| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-56581: btrfs: ref-verify: fix use-after-free after invalid ref action |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| btrfs: ref-verify: fix use-after-free after invalid ref action |
| |
| 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 |
| |
| The Linux kernel CVE team has assigned CVE-2024-56581 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.15 with commit fd708b81d972a0714b02a60eb4792fdbf15868c4 and fixed in 5.4.287 with commit dfb9fe7de61f34cc241ab3900bdde93341096e0e |
| Issue introduced in 4.15 with commit fd708b81d972a0714b02a60eb4792fdbf15868c4 and fixed in 5.10.231 with commit 6fd018aa168e472ce35be32296d109db6adb87ea |
| Issue introduced in 4.15 with commit fd708b81d972a0714b02a60eb4792fdbf15868c4 and fixed in 5.15.174 with commit d2b85ce0561fde894e28fa01bd5d32820d585006 |
| Issue introduced in 4.15 with commit fd708b81d972a0714b02a60eb4792fdbf15868c4 and fixed in 6.1.120 with commit 6370db28af9a8ae3bbdfe97f8a48f8f995e144cf |
| Issue introduced in 4.15 with commit fd708b81d972a0714b02a60eb4792fdbf15868c4 and fixed in 6.6.64 with commit 4275ac2741941c9c7c2293619fdbacb9f70ba85b |
| Issue introduced in 4.15 with commit fd708b81d972a0714b02a60eb4792fdbf15868c4 and fixed in 6.12.4 with commit a6f9e7a0bf1185c9070c0de03bb85eafb9abd650 |
| Issue introduced in 4.15 with commit fd708b81d972a0714b02a60eb4792fdbf15868c4 and fixed in 6.13 with commit 7c4e39f9d2af4abaf82ca0e315d1fd340456620f |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-56581 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| fs/btrfs/ref-verify.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/dfb9fe7de61f34cc241ab3900bdde93341096e0e |
| https://git.kernel.org/stable/c/6fd018aa168e472ce35be32296d109db6adb87ea |
| https://git.kernel.org/stable/c/d2b85ce0561fde894e28fa01bd5d32820d585006 |
| https://git.kernel.org/stable/c/6370db28af9a8ae3bbdfe97f8a48f8f995e144cf |
| https://git.kernel.org/stable/c/4275ac2741941c9c7c2293619fdbacb9f70ba85b |
| https://git.kernel.org/stable/c/a6f9e7a0bf1185c9070c0de03bb85eafb9abd650 |
| https://git.kernel.org/stable/c/7c4e39f9d2af4abaf82ca0e315d1fd340456620f |
