8d051f7...
by
Tim Gardner
on 2022-06-09
UBUNTU: Ubuntu- gcp-5.13- 5.13.0- 1031.37~ 20.04.1
Signed-off-by: Tim Gardner <email address hidden>
f469e80...
by
Tim Gardner
on 2022-06-09
UBUNTU: link-to-tracker: update tracking bug
BugLink: https:/ /bugs.launchpad .net/bugs/ 1978002
Properties: no-test-build
Signed-off-by: Tim Gardner <email address hidden>
193bedd...
by
Andrea Righi
on 2022-05-16
UBUNTU: SAUCE: overlayfs: prevent dereferencing struct file in ovl_vm_prfile_set()
BugLink: https:/ /bugs.launchpad .net/bugs/ 1973620
With the following commit we re-introduced a SAUCE patch that has been
dropped starting with 5.13:
37e9bac9203b ("UBUNTU: SAUCE: overlayfs: fix incorrect mnt_id of files opened from map_files")
However the forward-ported patch introduced a potential NULL pointer
dereference bug:
BUG: kernel NULL pointer dereference, address: 0000000000000008
[ 447.039738] #PF: supervisor read access in kernel mode
[ 447.040369] #PF: error_code(0x0000) - not-present page
[ 447.041002] PGD 0 P4D 0
[ 447.041325] Oops: 0000 [#1] SMP NOPTI
[ 447.041798] CPU: 0 PID: 73766 Comm: sudo Not tainted 5.15.0-28-generic #29~20.04.1-Ubuntu
[ 447.042800] Hardware name: OpenStack Foundation OpenStack Nova, BIOS Ubuntu- 1.8.2-1ubuntu1+ esm1 04/01/2014
[ 447.043979] RIP: 0010:aa_ file_perm+ 0x3a/0x470
[ 447.044565] Code: 54 53 48 83 ec 68 48 89 7d 80 89 4d 8c 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 63 05 01 0a 19 01 48 03 82 c0 00 00 00 <4c> 8b 68 08 f6 46 40 02 0f 85 d0 00 00 00 41 f6 45 40 02 0f 85 c5
[ 447.046837] RSP: 0018:ffffaefe80 a4bca8 EFLAGS: 00010246
[ 447.047481] RAX: 0000000000000000 RBX: ffff96e4038abd01 RCX: 0000000000000004
[ 447.048351] RDX: ffff96e4038abd00 RSI: ffff96e401215eb8 RDI: ffffffff9c22a2ac
[ 447.049241] RBP: ffffaefe80a4bd38 R08: 0000000000000000 R09: 0000000000000000
[ 447.050121] R10: 0000000000000000 R11: 0000000000000000 R12: ffff96e401215eb8
[ 447.051040] R13: ffff96e4038abd00 R14: ffffffff9c22a2ac R15: 0000000000000004
[ 447.051942] FS: 00007eff3c0f8c8 0(0000) GS:ffff96e45e40 0000(0000) knlGS:000000000 0000000
[ 447.052981] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 447.053696] CR2: 0000000000000008 CR3: 0000000002be2000 CR4: 00000000003506f0
[ 447.054571] Call Trace:
[ 447.054883] <TASK>
[ 447.055154] ? unlock_ page_memcg+ 0x2f/0x40
[ 447.055668] ? page_remove_ rmap+0x4b/ 0x320
[ 447.056180] common_ file_perm+ 0x72/0x170
[ 447.056669] apparmor_ file_permission +0x1c/0x20
[ 447.057237] security_ file_permission +0x30/0x1a0
[ 447.057898] rw_verify_ area+0x35/ 0x60
[ 447.058392] vfs_read+0x6d/0x1a0
[ 447.058842] ksys_read+0xb1/0xe0
[ 447.059276] __x64_sys_ read+0x1a/ 0x20
[ 447.059732] do_syscall_ 64+0x5c/ 0xc0
[ 447.060183] ? __set_current_ blocked+ 0x3b/0x60
[ 447.060738] ? exit_to_ user_mode_ prepare+ 0x3d/0x1c0
[ 447.061434] ? syscall_ exit_to_ user_mode+ 0x27/0x50
[ 447.062099] ? do_syscall_ 64+0x69/ 0xc0
[ 447.062603] ? irqentry_ exit_to_ user_mode+ 0x9/0x20
[ 447.063210] ? irqentry_ exit+0x19/ 0x30
[ 447.063678] ? exc_page_ fault+0x89/ 0x160
[ 447.064165] ? asm_exc_ page_fault+ 0x8/0x30
[ 447.064675] entry_SYSCALL_ 64_after_ hwframe+ 0x44/0xae
[ 447.065298] RIP: 0033:0x7eff3c2cb002
This panic happens only when AUFS is enabled (that is required to
"activates" this feature).
This bug happens because we don't need to decrement anymore the refcount
for the previous vm_file value in ovl_vm_ prfile_ set(). So make sure to
drop the offending fput() to prevent the kernel panic above.
Signed-off-by: Andrea Righi <email address hidden>
Acked-by: Stefan Bader <email address hidden>
Acked-by: Kleber Sacilotto de Souza <email address hidden>
Signed-off-by: Stefan Bader <email address hidden>
Signed-off-by: Khalid Elmously <email address hidden>
5fe4274...
by
Khaled El Mously
on 2022-06-08
UBUNTU: Start new release
Ignore: yes
Signed-off-by: Khalid Elmously <email address hidden>
92c831a...
by
Thadeu Lima de Souza Cascardo
on 2022-06-03
UBUNTU: Ubuntu- gcp-5.13- 5.13.0- 1030.36~ 20.04.1
Signed-off-by: Thadeu Lima de Souza Cascardo <email address hidden>
a6b71dc...
by
Thadeu Lima de Souza Cascardo
on 2022-06-03
UBUNTU: Start new release
Ignore: yes
Signed-off-by: Thadeu Lima de Souza Cascardo <email address hidden>
4612103...
by
Joseph Salisbury
on 2022-06-01
UBUNTU: Ubuntu- gcp-5.13- 5.13.0- 1028.33~ 20.04.1
Signed-off-by: Joseph Salisbury <email address hidden>
4c48813...
by
Joseph Salisbury
on 2022-06-01
UBUNTU: link-to-tracker: update tracking bug
BugLink: https:/ /bugs.launchpad .net/bugs/ 1974335
Properties: no-test-build
Signed-off-by: Joseph Salisbury <email address hidden>
188bd3e...
by
Joseph Salisbury
on 2022-06-01
UBUNTU: Start new release
Ignore: yes
Signed-off-by: Joseph Salisbury <email address hidden>
6287cb2...
by
Joseph Salisbury
on 2022-05-25
UBUNTU: Ubuntu- gcp-5.13- 5.13.0- 1027.32~ 20.04.1
Signed-off-by: Joseph Salisbury <email address hidden>