Bug 1222005 (CVE-2021-47145)

Summary:	VUL-0: CVE-2021-47145: kernel: btrfs: do not BUG_ON in link_to_fixup_dir
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Filipe Manana <fdmanana>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	andrea.mattiazzo, fdmanana, gabriel.bertazi, stoyan.manolov
Version:	unspecified	Flags:	stoyan.manolov: needinfo? (fdmanana)
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/398792/
Whiteboard:	CVSSv3.1:SUSE:CVE-2021-47145:5.5:(AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-03-26 13:55:48 UTC

In the Linux kernel, the following vulnerability has been resolved:

btrfs: do not BUG_ON in link_to_fixup_dir

While doing error injection testing I got the following panic

  kernel BUG at fs/btrfs/tree-log.c:1862!
  invalid opcode: 0000 [#1] SMP NOPTI
  CPU: 1 PID: 7836 Comm: mount Not tainted 5.13.0-rc1+ #305
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014
  RIP: 0010:link_to_fixup_dir+0xd5/0xe0
  RSP: 0018:ffffb5800180fa30 EFLAGS: 00010216
  RAX: fffffffffffffffb RBX: 00000000fffffffb RCX: ffff8f595287faf0
  RDX: ffffb5800180fa37 RSI: ffff8f5954978800 RDI: 0000000000000000
  RBP: ffff8f5953af9450 R08: 0000000000000019 R09: 0000000000000001
  R10: 000151f408682970 R11: 0000000120021001 R12: ffff8f5954978800
  R13: ffff8f595287faf0 R14: ffff8f5953c77dd0 R15: 0000000000000065
  FS:  00007fc5284c8c40(0000) GS:ffff8f59bbd00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007fc5287f47c0 CR3: 000000011275e002 CR4: 0000000000370ee0
  Call Trace:
   replay_one_buffer+0x409/0x470
   ? btree_read_extent_buffer_pages+0xd0/0x110
   walk_up_log_tree+0x157/0x1e0
   walk_log_tree+0xa6/0x1d0
   btrfs_recover_log_trees+0x1da/0x360
   ? replay_one_extent+0x7b0/0x7b0
   open_ctree+0x1486/0x1720
   btrfs_mount_root.cold+0x12/0xea
   ? __kmalloc_track_caller+0x12f/0x240
   legacy_get_tree+0x24/0x40
   vfs_get_tree+0x22/0xb0
   vfs_kern_mount.part.0+0x71/0xb0
   btrfs_mount+0x10d/0x380
   ? vfs_parse_fs_string+0x4d/0x90
   legacy_get_tree+0x24/0x40
   vfs_get_tree+0x22/0xb0
   path_mount+0x433/0xa10
   __x64_sys_mount+0xe3/0x120
   do_syscall_64+0x3d/0x80
   entry_SYSCALL_64_after_hwframe+0x44/0xae

We can get -EIO or any number of legitimate errors from
btrfs_search_slot(), panicing here is not the appropriate response.  The
error path for this code handles errors properly, simply return the
error.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47145
https://git.kernel.org/stable/c/e934c4ee17b33bafb0444f2f9766cda7166d3c40
https://www.cve.org/CVERecord?id=CVE-2021-47145
https://git.kernel.org/stable/c/0eaf383c6a4a83c09f60fd07a1bea9f1a9181611
https://git.kernel.org/stable/c/0ed102453aa1cd12fefde8f6b60b9519b0b1f003
https://git.kernel.org/stable/c/6eccfb28f8dca70c9b1b3bb3194ca54cbe73a9fa
https://git.kernel.org/stable/c/76bfd8ac20bebeae599452a03dfc5724c0475dcf
https://git.kernel.org/stable/c/7e13db503918820e6333811cdc6f151dcea5090a
https://git.kernel.org/stable/c/91df99a6eb50d5a1bc70fff4a09a0b7ae6aab96d
https://git.kernel.org/stable/c/b545442133580dcb2f2496133bf850824d41255c
https://bugzilla.redhat.com/show_bug.cgi?id=2271477

Comment 1 Andrea Mattiazzo 2024-03-26 14:04:49 UTC

Offending commit (1da177e4c3f4) found in:
 - ALP-current
 - cve/linux-4.4-LTSS
 - cve/linux-5.3-LTSS
 - cve/linux-5.14-LTSS
 - SLE11-SP4-LTSS
 - SLE12-SP2-LTSS
 - SLE12-SP3-LTSS
 - SLE12-SP3-TD
 - SLE12-SP4-LTSS
 - SLE12-SP5
 - SLE15-LTSS
 - SLE15-SP1-LTSS
 - SLE15-SP2-LTSS
 - SLE15-SP3-LTSS
 - SLE15-SP4-LTSS
 - SLE15-SP5
 - SLE15-SP6
 - SLE15-SP6-GA
 - stable

Fixing commit (0eaf383c6a4a) found in:
 - ALP-current
 - cve/linux-5.14-LTSS
 - SLE15-SP4-LTSS
 - SLE15-SP5
 - SLE15-SP6
 - SLE15-SP6-GA
 - stable

Tracking as affected:
 - cve/linux-4.4-LTSS
 - cve/linux-5.3-LTSS
 - SLE11-SP4-LTSS
 - SLE12-SP2-LTSS
 - SLE12-SP3-LTSS
 - SLE12-SP3-TD
 - SLE12-SP4-LTSS
 - SLE12-SP5
 - SLE15-LTSS
 - SLE15-SP1-LTSS
 - SLE15-SP2-LTSS
 - SLE15-SP3-LTSS

Built as module: CONFIG_BTRFS_FS=m

Comment 2 Gabriel Krisman Bertazi 2024-03-27 18:25:43 UTC

I suppose we need a backport for 
 - SLE12-SP5

Reassigning to a concrete person to ensure progress [1] (feel free to pass to the next one), see also the process at [2].
 
[1] https://confluence.suse.com/display/KSS/Kernel+Security+Sentinel
[2] https://wiki.suse.net/index.php/SUSE-Labs/Kernel/Security

Comment 7 Maintenance Automation 2024-07-16 08:30:21 UTC

SUSE-SU-2024:2493-1: An update that solves 28 vulnerabilities and has three security fixes can now be installed.

Category: security (important)
Bug References: 1215420, 1220833, 1221656, 1221659, 1222005, 1222792, 1223021, 1223188, 1224622, 1224627, 1224647, 1224683, 1224686, 1224743, 1224965, 1225229, 1225357, 1225431, 1225478, 1225505, 1225530, 1225532, 1225569, 1225593, 1225835, 1226757, 1226861, 1226994, 1227407, 1227435, 1227487
CVE References: CVE-2021-47145, CVE-2021-47201, CVE-2021-47275, CVE-2021-47438, CVE-2021-47498, CVE-2021-47520, CVE-2021-47547, CVE-2023-4244, CVE-2023-52507, CVE-2023-52683, CVE-2023-52693, CVE-2023-52753, CVE-2023-52817, CVE-2023-52818, CVE-2023-52819, CVE-2024-26635, CVE-2024-26636, CVE-2024-26880, CVE-2024-35805, CVE-2024-35819, CVE-2024-35828, CVE-2024-35947, CVE-2024-36014, CVE-2024-36941, CVE-2024-38598, CVE-2024-38619, CVE-2024-39301, CVE-2024-39475
Maintenance Incident: [SUSE:Maintenance:34763](https://smelt.suse.de/incident/34763/)
Sources used:
SUSE Linux Enterprise Real Time 12 SP5 (src):
 kernel-syms-rt-4.12.14-10.194.1, kernel-source-rt-4.12.14-10.194.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 8 Maintenance Automation 2024-07-18 16:30:30 UTC

SUSE-SU-2024:2561-1: An update that solves 176 vulnerabilities and has 17 security fixes can now be installed.

Category: security (important)
Bug References: 1119113, 1171988, 1191958, 1195065, 1195254, 1195775, 1204514, 1215420, 1216062, 1217912, 1218148, 1219224, 1220833, 1221010, 1221647, 1221654, 1221656, 1221659, 1221791, 1221958, 1222005, 1222015, 1222080, 1222364, 1222385, 1222435, 1222792, 1222809, 1222866, 1222879, 1222893, 1223013, 1223018, 1223021, 1223043, 1223188, 1223384, 1223532, 1223641, 1224177, 1224432, 1224504, 1224549, 1224552, 1224572, 1224575, 1224583, 1224588, 1224605, 1224622, 1224627, 1224647, 1224651, 1224660, 1224661, 1224662, 1224664, 1224668, 1224670, 1224672, 1224674, 1224677, 1224678, 1224683, 1224686, 1224703, 1224735, 1224739, 1224743, 1224763, 1224764, 1224765, 1224946, 1224951, 1224965, 1224967, 1224976, 1224977, 1224978, 1224993, 1224997, 1225047, 1225140, 1225184, 1225203, 1225229, 1225232, 1225261, 1225306, 1225337, 1225357, 1225372, 1225431, 1225463, 1225478, 1225484, 1225487, 1225490, 1225505, 1225514, 1225518, 1225530, 1225532, 1225548, 1225555, 1225556, 1225559, 1225569, 1225571, 1225573, 1225577, 1225583, 1225585, 1225593, 1225599, 1225602, 1225611, 1225642, 1225681, 1225704, 1225722, 1225749, 1225758, 1225760, 1225761, 1225767, 1225770, 1225815, 1225835, 1225840, 1225848, 1225866, 1225872, 1225894, 1225895, 1225898, 1226211, 1226212, 1226537, 1226554, 1226557, 1226562, 1226567, 1226575, 1226577, 1226593, 1226595, 1226597, 1226610, 1226614, 1226619, 1226621, 1226634, 1226637, 1226670, 1226672, 1226692, 1226698, 1226699, 1226701, 1226705, 1226708, 1226711, 1226712, 1226716, 1226718, 1226732, 1226735, 1226744, 1226746, 1226747, 1226749, 1226754, 1226757, 1226767, 1226769, 1226857, 1226861, 1226876, 1226883, 1226886, 1226895, 1226948, 1226949, 1226950, 1226962, 1226976, 1226994, 1226996, 1227101, 1227407, 1227435, 1227487
CVE References: CVE-2020-10135, CVE-2021-43389, CVE-2021-4439, CVE-2021-47103, CVE-2021-47145, CVE-2021-47191, CVE-2021-47193, CVE-2021-47201, CVE-2021-47267, CVE-2021-47270, CVE-2021-47275, CVE-2021-47293, CVE-2021-47294, CVE-2021-47297, CVE-2021-47309, CVE-2021-47328, CVE-2021-47354, CVE-2021-47372, CVE-2021-47379, CVE-2021-47407, CVE-2021-47418, CVE-2021-47434, CVE-2021-47438, CVE-2021-47445, CVE-2021-47498, CVE-2021-47518, CVE-2021-47520, CVE-2021-47544, CVE-2021-47547, CVE-2021-47566, CVE-2021-47571, CVE-2021-47576, CVE-2021-47587, CVE-2021-47589, CVE-2021-47600, CVE-2021-47602, CVE-2021-47603, CVE-2021-47609, CVE-2021-47617, CVE-2022-0435, CVE-2022-22942, CVE-2022-48711, CVE-2022-48715, CVE-2022-48722, CVE-2022-48732, CVE-2022-48733, CVE-2022-48740, CVE-2022-48743, CVE-2022-48754, CVE-2022-48756, CVE-2022-48758, CVE-2022-48759, CVE-2022-48760, CVE-2022-48761, CVE-2022-48771, CVE-2022-48772, CVE-2023-24023, CVE-2023-4244, CVE-2023-52507, CVE-2023-52622, CVE-2023-52675, CVE-2023-52683, CVE-2023-52693, CVE-2023-52737, CVE-2023-52752, CVE-2023-52753, CVE-2023-52754, CVE-2023-52757, CVE-2023-52762, CVE-2023-52764, CVE-2023-52784, CVE-2023-52808, CVE-2023-52809, CVE-2023-5281, CVE-2023-52817, CVE-2023-52818, CVE-2023-52819, CVE-2023-52832, CVE-2023-52834, CVE-2023-52835, CVE-2023-52843, CVE-2023-52845, CVE-2023-52855, CVE-2023-52881, CVE-2024-26633, CVE-2024-26635, CVE-2024-26636, CVE-2024-26641, CVE-2024-26679, CVE-2024-26687, CVE-2024-26720, CVE-2024-26813, CVE-2024-26845, CVE-2024-26863, CVE-2024-26880, CVE-2024-26894, CVE-2024-26923, CVE-2024-26928, CVE-2024-26973, CVE-2024-27399, CVE-2024-27410, CVE-2024-35247, CVE-2024-35805, CVE-2024-35807, CVE-2024-35819, CVE-2024-35822, CVE-2024-35828, CVE-2024-35835, CVE-2024-35862, CVE-2024-35863, CVE-2024-35864, CVE-2024-35865, CVE-2024-35867, CVE-2024-35868, CVE-2024-35870, CVE-2024-35886, CVE-2024-35896, CVE-2024-35922, CVE-2024-35925, CVE-2024-35930, CVE-2024-35947, CVE-2024-35950, CVE-2024-35956, CVE-2024-35958, CVE-2024-35960, CVE-2024-35962, CVE-2024-35976, CVE-2024-35979, CVE-2024-35997, CVE-2024-35998, CVE-2024-36014, CVE-2024-36016, CVE-2024-36017, CVE-2024-36025, CVE-2024-36479, CVE-2024-36880, CVE-2024-36894, CVE-2024-36915, CVE-2024-36917, CVE-2024-36919, CVE-2024-36923, CVE-2024-36934, CVE-2024-36938, CVE-2024-36940, CVE-2024-36941, CVE-2024-36949, CVE-2024-36950, CVE-2024-36952, CVE-2024-36960, CVE-2024-36964, CVE-2024-37021, CVE-2024-37354, CVE-2024-38544, CVE-2024-38545, CVE-2024-38546, CVE-2024-38549, CVE-2024-38552, CVE-2024-38553, CVE-2024-38565, CVE-2024-38567, CVE-2024-38578, CVE-2024-38579, CVE-2024-38580, CVE-2024-38597, CVE-2024-38598, CVE-2024-38601, CVE-2024-38608, CVE-2024-38618, CVE-2024-38619, CVE-2024-38621, CVE-2024-38627, CVE-2024-38659, CVE-2024-38661, CVE-2024-38780, CVE-2024-39301, CVE-2024-39475
Maintenance Incident: [SUSE:Maintenance:34719](https://smelt.suse.de/incident/34719/)
Sources used:
SUSE Linux Enterprise Live Patching 12-SP5 (src):
 kgraft-patch-SLE12-SP5_Update_58-1-8.3.1
SUSE Linux Enterprise Software Development Kit 12 SP5 (src):
 kernel-obs-build-4.12.14-122.222.1
SUSE Linux Enterprise High Performance Computing 12 SP5 (src):
 kernel-syms-4.12.14-122.222.1, kernel-source-4.12.14-122.222.1
SUSE Linux Enterprise Server 12 SP5 (src):
 kernel-syms-4.12.14-122.222.1, kernel-source-4.12.14-122.222.1
SUSE Linux Enterprise Server for SAP Applications 12 SP5 (src):
 kernel-syms-4.12.14-122.222.1, kernel-source-4.12.14-122.222.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 9 Maintenance Automation 2024-07-18 16:35:07 UTC

SUSE-SU-2024:2561-1: An update that solves 176 vulnerabilities and has 17 security fixes can now be installed.

Category: security (important)
Bug References: 1119113, 1171988, 1191958, 1195065, 1195254, 1195775, 1204514, 1215420, 1216062, 1217912, 1218148, 1219224, 1220833, 1221010, 1221647, 1221654, 1221656, 1221659, 1221791, 1221958, 1222005, 1222015, 1222080, 1222364, 1222385, 1222435, 1222792, 1222809, 1222866, 1222879, 1222893, 1223013, 1223018, 1223021, 1223043, 1223188, 1223384, 1223532, 1223641, 1224177, 1224432, 1224504, 1224549, 1224552, 1224572, 1224575, 1224583, 1224588, 1224605, 1224622, 1224627, 1224647, 1224651, 1224660, 1224661, 1224662, 1224664, 1224668, 1224670, 1224672, 1224674, 1224677, 1224678, 1224683, 1224686, 1224703, 1224735, 1224739, 1224743, 1224763, 1224764, 1224765, 1224946, 1224951, 1224965, 1224967, 1224976, 1224977, 1224978, 1224993, 1224997, 1225047, 1225140, 1225184, 1225203, 1225229, 1225232, 1225261, 1225306, 1225337, 1225357, 1225372, 1225431, 1225463, 1225478, 1225484, 1225487, 1225490, 1225505, 1225514, 1225518, 1225530, 1225532, 1225548, 1225555, 1225556, 1225559, 1225569, 1225571, 1225573, 1225577, 1225583, 1225585, 1225593, 1225599, 1225602, 1225611, 1225642, 1225681, 1225704, 1225722, 1225749, 1225758, 1225760, 1225761, 1225767, 1225770, 1225815, 1225835, 1225840, 1225848, 1225866, 1225872, 1225894, 1225895, 1225898, 1226211, 1226212, 1226537, 1226554, 1226557, 1226562, 1226567, 1226575, 1226577, 1226593, 1226595, 1226597, 1226610, 1226614, 1226619, 1226621, 1226634, 1226637, 1226670, 1226672, 1226692, 1226698, 1226699, 1226701, 1226705, 1226708, 1226711, 1226712, 1226716, 1226718, 1226732, 1226735, 1226744, 1226746, 1226747, 1226749, 1226754, 1226757, 1226767, 1226769, 1226857, 1226861, 1226876, 1226883, 1226886, 1226895, 1226948, 1226949, 1226950, 1226962, 1226976, 1226994, 1226996, 1227101, 1227407, 1227435, 1227487
CVE References: CVE-2020-10135, CVE-2021-43389, CVE-2021-4439, CVE-2021-47103, CVE-2021-47145, CVE-2021-47191, CVE-2021-47193, CVE-2021-47201, CVE-2021-47267, CVE-2021-47270, CVE-2021-47275, CVE-2021-47293, CVE-2021-47294, CVE-2021-47297, CVE-2021-47309, CVE-2021-47328, CVE-2021-47354, CVE-2021-47372, CVE-2021-47379, CVE-2021-47407, CVE-2021-47418, CVE-2021-47434, CVE-2021-47438, CVE-2021-47445, CVE-2021-47498, CVE-2021-47518, CVE-2021-47520, CVE-2021-47544, CVE-2021-47547, CVE-2021-47566, CVE-2021-47571, CVE-2021-47576, CVE-2021-47587, CVE-2021-47589, CVE-2021-47600, CVE-2021-47602, CVE-2021-47603, CVE-2021-47609, CVE-2021-47617, CVE-2022-0435, CVE-2022-22942, CVE-2022-48711, CVE-2022-48715, CVE-2022-48722, CVE-2022-48732, CVE-2022-48733, CVE-2022-48740, CVE-2022-48743, CVE-2022-48754, CVE-2022-48756, CVE-2022-48758, CVE-2022-48759, CVE-2022-48760, CVE-2022-48761, CVE-2022-48771, CVE-2022-48772, CVE-2023-24023, CVE-2023-4244, CVE-2023-52507, CVE-2023-52622, CVE-2023-52675, CVE-2023-52683, CVE-2023-52693, CVE-2023-52737, CVE-2023-52752, CVE-2023-52753, CVE-2023-52754, CVE-2023-52757, CVE-2023-52762, CVE-2023-52764, CVE-2023-52784, CVE-2023-52808, CVE-2023-52809, CVE-2023-5281, CVE-2023-52817, CVE-2023-52818, CVE-2023-52819, CVE-2023-52832, CVE-2023-52834, CVE-2023-52835, CVE-2023-52843, CVE-2023-52845, CVE-2023-52855, CVE-2023-52881, CVE-2024-26633, CVE-2024-26635, CVE-2024-26636, CVE-2024-26641, CVE-2024-26679, CVE-2024-26687, CVE-2024-26720, CVE-2024-26813, CVE-2024-26845, CVE-2024-26863, CVE-2024-26880, CVE-2024-26894, CVE-2024-26923, CVE-2024-26928, CVE-2024-26973, CVE-2024-27399, CVE-2024-27410, CVE-2024-35247, CVE-2024-35805, CVE-2024-35807, CVE-2024-35819, CVE-2024-35822, CVE-2024-35828, CVE-2024-35835, CVE-2024-35862, CVE-2024-35863, CVE-2024-35864, CVE-2024-35865, CVE-2024-35867, CVE-2024-35868, CVE-2024-35870, CVE-2024-35886, CVE-2024-35896, CVE-2024-35922, CVE-2024-35925, CVE-2024-35930, CVE-2024-35947, CVE-2024-35950, CVE-2024-35956, CVE-2024-35958, CVE-2024-35960, CVE-2024-35962, CVE-2024-35976, CVE-2024-35979, CVE-2024-35997, CVE-2024-35998, CVE-2024-36014, CVE-2024-36016, CVE-2024-36017, CVE-2024-36025, CVE-2024-36479, CVE-2024-36880, CVE-2024-36894, CVE-2024-36915, CVE-2024-36917, CVE-2024-36919, CVE-2024-36923, CVE-2024-36934, CVE-2024-36938, CVE-2024-36940, CVE-2024-36941, CVE-2024-36949, CVE-2024-36950, CVE-2024-36952, CVE-2024-36960, CVE-2024-36964, CVE-2024-37021, CVE-2024-37354, CVE-2024-38544, CVE-2024-38545, CVE-2024-38546, CVE-2024-38549, CVE-2024-38552, CVE-2024-38553, CVE-2024-38565, CVE-2024-38567, CVE-2024-38578, CVE-2024-38579, CVE-2024-38580, CVE-2024-38597, CVE-2024-38598, CVE-2024-38601, CVE-2024-38608, CVE-2024-38618, CVE-2024-38619, CVE-2024-38621, CVE-2024-38627, CVE-2024-38659, CVE-2024-38661, CVE-2024-38780, CVE-2024-39301, CVE-2024-39475
Maintenance Incident: [SUSE:Maintenance:34719](https://smelt.suse.de/incident/34719/)
Sources used:
SUSE Linux Enterprise Live Patching 12-SP5 (src):
 kgraft-patch-SLE12-SP5_Update_58-1-8.3.1
SUSE Linux Enterprise Software Development Kit 12 SP5 (src):
 kernel-obs-build-4.12.14-122.222.1
SUSE Linux Enterprise High Performance Computing 12 SP5 (src):
 kernel-syms-4.12.14-122.222.1, kernel-source-4.12.14-122.222.1
SUSE Linux Enterprise Server 12 SP5 (src):
 kernel-syms-4.12.14-122.222.1, kernel-source-4.12.14-122.222.1
SUSE Linux Enterprise Server for SAP Applications 12 SP5 (src):
 kernel-syms-4.12.14-122.222.1, kernel-source-4.12.14-122.222.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.