I'm still facing a bug with btrfs that
occurs since 4.2.6-hardened-r6 till 4.4.2.
An similar bug has been patched already
https://patchwork.kernel.org/patch/7582351/
Is someone able to reproduce this?
Thx!
my config:
https://binarysignals.net/pub/linux-4.2.6-hardened-r5.config
https://binarysignals.net/pub/emerge--info_e10.txt
dmesg:
Feb 20 17:21:22 e10 kernel: PAX: size overflow detected in function
btrfs_extent_item_to_extent_map fs/btrfs/file-item.c:913 cicus.463_134
min, count: 150, decl: orig_start; num: 0; context: extent_map;
Feb 20 17:21:22 e10 kernel: CPU: 0 PID: 4709 Comm: evolution-addre Not
tainted 4.4.2-hardened #1
Feb 20 17:21:22 e10 kernel: Hardware name: Dell Inc. Latitude E4200
/0XRV1H, BIOS A24 06/04/2013
Feb 20 17:21:22 e10 kernel: ffff880100000002 c3eced83898a9252
0000000000000000 0000000000000391
Feb 20 17:21:22 e10 kernel: ffffc90005893630 ffffffffa26152bb
ffffffffa9124d70 c3eced83898a9252
Feb 20 17:21:22 e10 kernel: ffffffffa9124d70 ffffc90005893660
ffffffffa2241e6e ffff8800baa0d2f8
Feb 20 17:21:22 e10 kernel: Call Trace:
Feb 20 17:21:22 e10 kernel: [<ffffffffa26152bb>] dump_stack+0x57/0x8c
Feb 20 17:21:22 e10 kernel: [<ffffffffa2241e6e>]
report_size_overflow+0x6e/0x80
Feb 20 17:21:22 e10 kernel: [<ffffffffa24c2f68>]
btrfs_extent_item_to_extent_map+0x458/0x490
Feb 20 17:21:22 e10 kernel: [<ffffffffa24d4a86>]
btrfs_get_extent+0xbe6/0xdb0
Feb 20 17:21:22 e10 kernel: [<ffffffffa24f9291>] ?
submit_extent_page+0x101/0x250
Feb 20 17:21:22 e10 kernel: [<ffffffffa24fa305>]
__do_readpage+0x2b5/0xe50
Feb 20 17:21:22 e10 kernel: [<ffffffffa24fbcf0>] ?
btrfs_create_repair_bio+0x1a0/0x1a0
Feb 20 17:21:22 e10 kernel: [<ffffffffa24d3ea0>] ?
btrfs_direct_IO+0x530/0x530
Feb 20 17:21:22 e10 kernel: [<ffffffffa24fb3d0>]
__extent_readpages.constprop.44+0x310/0x350
Feb 20 17:21:22 e10 kernel: [<ffffffffa24d3ea0>] ?
btrfs_direct_IO+0x530/0x530
Feb 20 17:21:22 e10 kernel: [<ffffffffa24fd1e4>]
extent_readpages+0x1e4/0x1f0
Feb 20 17:21:22 e10 kernel: [<ffffffffa24d3ea0>] ?
btrfs_direct_IO+0x530/0x530
Feb 20 17:21:22 e10 kernel: [<ffffffffa2212cd9>] ?
alloc_pages_current+0x89/0x110
Feb 20 17:21:22 e10 kernel: [<ffffffffa24d1df2>]
btrfs_readpages+0x32/0x40
Feb 20 17:21:22 e10 kernel: [<ffffffffa21d18b1>]
__do_page_cache_readahead+0x1d1/0x250
Feb 20 17:21:22 e10 kernel: [<ffffffffa21d1a11>]
ondemand_readahead+0xe1/0x2e0
Feb 20 17:21:22 e10 kernel: [<ffffffffa21d1dc6>]
page_cache_sync_readahead+0x46/0x70
Feb 20 17:21:22 e10 kernel: [<ffffffffa21c4e43>]
generic_file_read_iter+0x633/0x7c0
Feb 20 17:21:22 e10 kernel: [<ffffffffa223926b>] __vfs_read+0x10b/0x140
Feb 20 17:21:22 e10 kernel: [<ffffffffa2239e83>] vfs_read+0xc3/0x240
Feb 20 17:21:22 e10 kernel: [<ffffffffa225e8cd>] ?
__fget_light+0x2d/0x70
Feb 20 17:21:22 e10 kernel: [<ffffffffa223b453>] SyS_pread64+0xa3/0xc0
Feb 20 17:21:22 e10 kernel: [<ffffffffa2d4a999>]
entry_SYSCALL_64_fastpath+0x12/0x83
Feb 20 17:21:22 e10 kernel: ------------[ cut here ]------------
