Updated:
Description:
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix races between hole punching and AIO+DIO After commit "ocfs2: return real error code in ocfs2_dio_wr_get_block", fstests/generic/300 become from always failed to sometimes failed: ======================================================================== [ 473.293420 ] run fstests generic/300 [ 475.296983 ] JBD2: Ignoring recovery information on journal [ 475.302473 ] ocfs2: Mounting device (253,1) on (node local, slot 0) with ordered data mode. [ 494.290998 ] OCFS2: ERROR (device dm-1): ocfs2_change_extent_flag: Owner 5668 has an extent at cpos 78723 which can no longer be found [ 494.291609 ] On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. [ 494.292018 ] OCFS2: File system is now read-only. [ 494.292224 ] (kworker/19:11,2628,19):ocfs2_mark_extent_written:5272 ERROR: status = -30 [ 494.292602 ] (kworker/19:11,2628,19):ocfs2_dio_end_io_write:2374 ERROR: status = -3 fio: io_u error on file /mnt/scratch/racer: Read-only file system: write offset=460849152, buflen=131072 ========================================================================= In __blockdev_direct_IO, ocfs2_dio_wr_get_block is called to add unwritten extents to a list. extents are also inserted into extent tree in ocfs2_write_begin_nolock. Then another thread call fallocate to puch a hole at one of the unwritten extent. The extent at cpos was removed by ocfs2_remove_extent(). At end io worker thread, ocfs2_search_extent_list found there is no such extent at the cpos. T1 T2 T3 inode lock ... insert extents ... inode unlock ocfs2_fallocate __ocfs2_change_file_space inode lock lock ip_alloc_sem ocfs2_remove_inode_range inode ocfs2_remove_btree_range ocfs2_remove_extent ^---remove the extent at cpos 78723 ... unlock ip_alloc_sem inode unlock ocfs2_dio_end_io ocfs2_dio_end_io_write lock ip_alloc_sem ocfs2_mark_extent_written ocfs2_change_extent_flag ocfs2_search_extent_list ^---failed to find extent ... unlock ip_alloc_sem In most filesystems, fallocate is not compatible with racing with AIO+DIO, so fix it by adding to wait for all dio before fallocate/punch_hole like ext4.
CVSS3: 5.5
| OS | Vendor version | Errata |
|---|---|---|
| Oracle Linux 6 UEK 4 | 4.1.12-124.92.3.el6uek | ELSA-2024-12851 |
| Oracle Linux 7 UEK 4 | 4.1.12-124.92.3.el7uek | ELSA-2024-12851 |
| Oracle Linux 7 UEK 5 | 4.14.35-2047.541.4.1.el7uek | ELSA-2024-12779 |
| Ubuntu 20.04 | 5.4.0-195.215 | USN-7003-1 |
| Oracle Linux 7 UEK 6 | 5.4.17-2136.335.4.el7uek | ELSA-2024-12610 |
| Oracle Linux 8 UEK 6 | 5.4.17-2136.335.4.el8uek | ELSA-2024-12610 |
| Ubuntu 20.04 AWS | 5.4.0-1132.142 | USN-7003-1 |
| Ubuntu 20.04 Azure | 5.4.0-1137.144 | USN-7003-1 |
| Ubuntu 16.04 ESM | 4.4.0-266.300 | USN-7332-1 |
| Ubuntu 16.04 HWE ESM | 4.15.0-235.247~16.04.1 | USN-7342-1 |
| Ubuntu 16.04 AWS ESM | 4.4.0-1179.194 | USN-7332-1 |
| Ubuntu 16.04 GCP ESM | 4.15.0-1171.188~16.04.1 | USN-7344-1 |
| Ubuntu 16.04 AWS HWE ESM | 4.15.0-1178.191~16.04.1 | USN-7344-1 |
| Ubuntu 16.04 Azure ESM | 4.15.0-1186.201~16.04.1 | USN-7344-2 |
| Debian 11 | 5.10.221-1 | DSA-5730-1 |
| Ubuntu 22.04 | 5.15.0-121.131 | USN-7007-1 |
| Ubuntu 22.04 AWS | 5.15.0-1069.75 | USN-7007-1 |
| Ubuntu 22.04 Azure | 5.15.0-1072.81 | USN-7009-1 |
| Debian 11 cloud | 5.10.221-1 | DSA-5730-1 |
| Ubuntu 20.04 HWE AWS | 5.15.0-1069.75~20.04.1 | USN-7007-1 |
| Ubuntu 20.04 HWE Azure | 5.15.0-1072.81~20.04.1 | USN-7009-1 |
| Ubuntu 20.04 GCP | 5.4.0-1136.145 | USN-7003-1 |
| Oracle Linux 9 UEK 7 | 5.15.0-210.163.7.el9uek | ELSA-2024-12618 |
| Oracle Linux 8 UEK 7 | 5.15.0-210.163.7.el8uek | ELSA-2024-12618 |
| Debian 12 | 6.1.99-1 | DSA-5731-1 |
| Ubuntu 24.04 | 6.8.0-44.44 | USN-6999-1 |
| OS | Original kernel version | State |
|---|---|---|
| Oracle Linux 6 UEK 4 | |
Will Not Fix |
| Oracle Linux 7 UEK 4 | |
Will Not Fix |
| Ubuntu 18.04 HWE Focal | |
Planned |
| Oracle Linux 7 UEK 5 | |
Planned |
| Ubuntu 20.04 | |
Planned |
| Oracle Linux 7 UEK 6 |
5.4.17-2011.0.7.el7uek
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5.4.17-2136.333.5.el7uek
5.4.17-2136.334.6.1.el7uek
5.4.17-2136.334.6.el7uek
|
Released |
| Oracle Linux 8 UEK 6 |
5.4.17-2011.0.7.el8uek
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5.4.17-2011.1.2.el8uek
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|
Released |
| Ubuntu 18.04 AWS Focal | |
Planned |
| Ubuntu 18.04 Azure Focal | |
Will Not Fix |
| Ubuntu 20.04 AWS | |
Planned |
| Ubuntu 20.04 Azure | |
Planned |
| Ubuntu 16.04 ESM | |
Planned |
| Ubuntu 16.04 HWE ESM | |
Planned |
| Ubuntu 16.04 AWS ESM | |
Planned |
| Ubuntu 16.04 GCP ESM | |
Planned |
| Ubuntu 16.04 AWS HWE ESM | |
Planned |
| Ubuntu 16.04 Azure ESM | |
Planned |
| Debian 11 | |
In Progress |
| Ubuntu 22.04 |
5.15.0-70.77
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|
Released |
| Ubuntu 22.04 AWS |
5.15.0-1004.6
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5.15.0-1068.74
|
Released |
| Ubuntu 22.04 Azure |
5.15.0-1003.4
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5.15.0-1005.6
5.15.0-1007.8
5.15.0-1008.9
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|
Released |
| Debian 11 cloud | |
In Progress |
| Ubuntu 20.04 HWE AWS |
5.15.0-1014.18~20.04.1
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5.15.0-1015.19~20.04.1
5.15.0-1017.21~20.04.1
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5.15.0-1021.25~20.04.1
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5.15.0-1026.30~20.04.2
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5.15.0-1030.34~20.04.1
5.15.0-1031.35~20.04.1
5.15.0-1033.37~20.04.1
5.15.0-1034.38~20.04.1
5.15.0-1035.39~20.04.1
5.15.0-1036.40~20.04.1
5.15.0-1037.41~20.04.1
5.15.0-1038.43~20.04.1
5.15.0-1039.44~20.04.1
5.15.0-1040.45~20.04.1
5.15.0-1041.46~20.04.1
5.15.0-1043.48~20.04.1
5.15.0-1044.49~20.04.1
5.15.0-1045.50~20.04.1
5.15.0-1047.52~20.04.1
5.15.0-1048.53~20.04.1
5.15.0-1049.54~20.04.1
5.15.0-1050.55~20.04.1
5.15.0-1051.56~20.04.1
5.15.0-1052.57~20.04.1
5.15.0-1053.58~20.04.1
5.15.0-1055.60~20.04.1
5.15.0-1056.61~20.04.1
5.15.0-1057.63~20.04.1
5.15.0-1058.64~20.04.1
5.15.0-1061.67~20.04.1
5.15.0-1062.68~20.04.1
5.15.0-1063.69~20.04.1
5.15.0-1064.70~20.04.1
5.15.0-1065.71~20.04.1
5.15.0-1066.72~20.04.1
5.15.0-1067.73~20.04.1
5.15.0-1068.74~20.04.1
|
Released |
| Ubuntu 20.04 HWE Azure |
5.15.0-1008.9~20.04.1
show all
hide all
5.15.0-1013.16~20.04.1
5.15.0-1014.17~20.04.1
5.15.0-1017.20~20.04.1
5.15.0-1019.24~20.04.1
5.15.0-1020.25~20.04.1
5.15.0-1021.26~20.04.1
5.15.0-1022.27~20.04.1
5.15.0-1023.29~20.04.1
5.15.0-1024.30~20.04.1
5.15.0-1029.36~20.04.1
5.15.0-1034.41~20.04.1
5.15.0-1049.56~20.04.1
5.15.0-1050.57~20.04.1
5.15.0-1054.62~20.04.1
5.15.0-1056.64~20.04.1
5.15.0-1057.65~20.04.1
5.15.0-1058.66~20.04.2
5.15.0-1059.67~20.04.1
5.15.0-1060.69~20.04.1
5.15.0-1061.70~20.04.1
5.15.0-1063.72~20.04.1
5.15.0-1064.73~20.04.1
5.15.0-1065.74~20.04.1
5.15.0-1067.76~20.04.1
5.15.0-1068.77~20.04.1
5.15.0-1070.79~20.04.1
5.15.0-1071.80~20.04.1
|
Released |
| Ubuntu 20.04 GCP | |
Planned |
| Oracle Linux 9 UEK 7 | |
Planned |
| Oracle Linux 8 UEK 7 | |
Planned |
| Debian 12 | |
Planned |
| Ubuntu 24.04 | |
Planned |