CVE-2024-36028

mm/hugetlb: fix DEBUG_LOCKS_WARN_ON(1) when dissolve_free_hugetlb_folio()

Severity Score

4.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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

mm/hugetlb: fix DEBUG_LOCKS_WARN_ON(1) when dissolve_free_hugetlb_folio()

When I did memory failure tests recently, below warning occurs:

DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 8 PID: 1011 at kernel/locking/lockdep.c:232 __lock_acquire+0xccb/0x1ca0
Modules linked in: mce_inject hwpoison_inject
CPU: 8 PID: 1011 Comm: bash Kdump: loaded Not tainted 6.9.0-rc3-next-20240410-00012-gdb69f219f4be #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:__lock_acquire+0xccb/0x1ca0
RSP: 0018:ffffa7a1c7fe3bd0 EFLAGS: 00000082
RAX: 0000000000000000 RBX: eb851eb853975fcf RCX: ffffa1ce5fc1c9c8
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffffa1ce5fc1c9c0
RBP: ffffa1c6865d3280 R08: ffffffffb0f570a8 R09: 0000000000009ffb
R10: 0000000000000286 R11: ffffffffb0f2ad50 R12: ffffa1c6865d3d10
R13: ffffa1c6865d3c70 R14: 0000000000000000 R15: 0000000000000004
FS: 00007ff9f32aa740(0000) GS:ffffa1ce5fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff9f3134ba0 CR3: 00000008484e4000 CR4: 00000000000006f0
Call Trace:
<TASK>
lock_acquire+0xbe/0x2d0
_raw_spin_lock_irqsave+0x3a/0x60
hugepage_subpool_put_pages.part.0+0xe/0xc0
free_huge_folio+0x253/0x3f0
dissolve_free_huge_page+0x147/0x210
__page_handle_poison+0x9/0x70
memory_failure+0x4e6/0x8c0
hard_offline_page_store+0x55/0xa0
kernfs_fop_write_iter+0x12c/0x1d0
vfs_write+0x380/0x540
ksys_write+0x64/0xe0
do_syscall_64+0xbc/0x1d0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff9f3114887
RSP: 002b:00007ffecbacb458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007ff9f3114887
RDX: 000000000000000c RSI: 0000564494164e10 RDI: 0000000000000001
RBP: 0000564494164e10 R08: 00007ff9f31d1460 R09: 000000007fffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c
R13: 00007ff9f321b780 R14: 00007ff9f3217600 R15: 00007ff9f3216a00
</TASK>
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 8 PID: 1011 Comm: bash Kdump: loaded Not tainted 6.9.0-rc3-next-20240410-00012-gdb69f219f4be #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
<TASK>
panic+0x326/0x350
check_panic_on_warn+0x4f/0x50
__warn+0x98/0x190
report_bug+0x18e/0x1a0
handle_bug+0x3d/0x70
exc_invalid_op+0x18/0x70
asm_exc_invalid_op+0x1a/0x20
RIP: 0010:__lock_acquire+0xccb/0x1ca0
RSP: 0018:ffffa7a1c7fe3bd0 EFLAGS: 00000082
RAX: 0000000000000000 RBX: eb851eb853975fcf RCX: ffffa1ce5fc1c9c8
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffffa1ce5fc1c9c0
RBP: ffffa1c6865d3280 R08: ffffffffb0f570a8 R09: 0000000000009ffb
R10: 0000000000000286 R11: ffffffffb0f2ad50 R12: ffffa1c6865d3d10
R13: ffffa1c6865d3c70 R14: 0000000000000000 R15: 0000000000000004
lock_acquire+0xbe/0x2d0
_raw_spin_lock_irqsave+0x3a/0x60
hugepage_subpool_put_pages.part.0+0xe/0xc0
free_huge_folio+0x253/0x3f0
dissolve_free_huge_page+0x147/0x210
__page_handle_poison+0x9/0x70
memory_failure+0x4e6/0x8c0
hard_offline_page_store+0x55/0xa0
kernfs_fop_write_iter+0x12c/0x1d0
vfs_write+0x380/0x540
ksys_write+0x64/0xe0
do_syscall_64+0xbc/0x1d0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff9f3114887
RSP: 002b:00007ffecbacb458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007ff9f3114887
RDX: 000000000000000c RSI: 0000564494164e10 RDI: 0000000000000001
RBP: 0000564494164e10 R08: 00007ff9f31d1460 R09: 000000007fffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c
R13: 00007ff9f321b780 R14: 00007ff9f3217600 R15: 00007ff9f3216a00
</TASK>

After git bisecting and digging into the code, I believe the root cause is
that _deferred_list field of folio is unioned with _hugetlb_subpool field.
In __update_and_free_hugetlb_folio(), folio->_deferred_
---truncated---

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: mm/hugetlb: corrija DEBUG_LOCKS_WARN_ON(1) cuando dissolve_free_hugetlb_folio() Cuando hice pruebas de falla de memoria recientemente, aparece la siguiente advertencia: DEBUG_LOCKS_WARN_ON(1) ADVERTENCIA: CPU: 8 PID: 1011 en kernel/locking/lockdep.c:232 __lock_acquire+0xccb/0x1ca0 Módulos vinculados en: mce_inject hwpoison_inject CPU: 8 PID: 1011 Comm: bash Kdump: cargado No contaminado 6.9.0-rc3-next-20240410-00012-gdb69f219f4be #3 Hardware nombre: PC estándar QEMU (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 01/04/2014 RIP: 0010:__lock_acquire+0xccb/0x1ca0 RSP: 0018:ffffa7a1c7fe3bd0 EFLAGS: 00000082 RAX: 0000000000000000 RBX: eb851eb853975fcf RCX: ffffa1ce5fc1c9c8 RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffffa1ce5fc1c9c0 RBP: 1c6865d3280 R08: fffffffb0f570a8 R09: 0000000000009ffb R10: 0000000000000286 R11: fffffffb0f2ad50 R12: ffffa1c6865d3d10 R13: ffffa1c6865d3c70 : 0000000000000000 R15: 0000000000000004 FS: 00007ff9f32aa740( 0000) GS:ffffa1ce5fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff9f3134ba0 CR3: 00000008484e 4000 CR4: 00000000000006f0 Seguimiento de llamadas: lock_acquire+0xbe/0x2d0 _raw_spin_lock_irqsave+0x3a/0x60 hugepage_subpool_put_pages. part.0+0xe/0xc0 free_huge_folio+0x253/0x3f0 dissolve_free_huge_page+0x147/0x210 __page_handle_poison+0x9/0x70 Memory_failure+0x4e6/0x8c0 hard_offline_page_store+0x55/0xa0 kernfs_fop_write_iter+0x12c/ 0x1d0 vfs_write+0x380/0x540 ksys_write+0x64/0xe0 do_syscall_64+0xbc /0x1d0 Entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff9f3114887 RSP: 002b:00007ffecbacb458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007ff9f3114887 RDX: 000000000000000c RSI: 0000564494164e10 RDI: 0000000000000001 RBP: 0000564494164e10 00007ff9f31d1460 R09: 000000007fffffff R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c R13: 00007ff9f321b780 R14: 00007ff9f3217600 R15: 00007ff9f3216a00 Pánico del kernel: no se sincroniza: kernel: pánico_on_warn configurado... CPU: 8 PID: 1011 Comm: bash Kdump: cargado No contaminado 6.9 .0-rc3-next-20240410-00012-gdb69f219f4be #3 Nombre del hardware: PC estándar QEMU (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 01/04/2014 Llamada Seguimiento: pánico+0x326/0x350 check_panic_on_warn+0x4f/0x50 __warn+0x98/0x190 report_bug+0x18e/0x1a0 handle_bug+0x3d/0x70 exc_invalid_op+0x18/0x70 asm_exc_invalid_op+0x1a/0x20 RIP: 0010:__lock_adquirir+0xccb/0x1ca0 RSP : 0018:ffffa7a1c7fe3bd0 EFLAGS: 00000082 RAX: 0000000000000000 RBX: eb851eb853975fcf RCX: ffffa1ce5fc1c9c8 RDX: 00000000ffffffd8 RSI: 027 RDI: ffffa1ce5fc1c9c0 RBP: ffffa1c6865d3280 R08: fffffffb0f570a8 R09: 0000000000009ffb R10: 00000000000000286 R11: fffffffb0f2ad50 R12: ffffa1c6865d 3d10 R13: ffffa1c6865d3c70 R14: 0000000000000000 R15 : 0000000000000004 lock_acquire+0xbe/0x2d0 _raw_spin_lock_irqsave+0x3a/0x60 hugepage_subpool_put_pages.part.0+0xe/0xc0 free_huge_folio+0x253/0x3f0 dissolve_free_huge_page+0x147/0x210 __page_handle_ veneno+0x9/0x70 error_de_memoria+0x4e6/0x8c0 hard_offline_page_store+0x55/0xa0 kernfs_fop_write_iter+0x12c/ 0x1d0 vfs_write+0x380/0x540 ksys_write+0x64/0xe0 do_syscall_64+0xbc/0x1d0 Entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff9f3114887 RSP: 002b:00007ffecbacb4 58 EFLAGS: 00000246 ORIG_RAX: 00000000000000001 RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007ff9f3114887 RDX: 000000000000000c RSI : 0000564494164e10 RDI: 0000000000000001 RBP: 0000564494164e10 R08: 00007ff9f31d1460 R09: 000000007ffffff R10: 0000000000000000 R11: 000000000000246 R12: 000000000000000c R13: 00007ff9f321b780 R14: 00007ff9f3217600 R15: 00007ff9f3216a00 Después de que git divida e indague en el código, creo que la causa raíz es que el campo _deferred_list del folio está unido con el campo _hugetlb_subpool. En __update_and_free_hugetlb_folio(), folio->_deferred_ ---truncado---

*Credits: N/A

CVSS Scores

Red Hatv3.1 4.7

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-17 CVE Reserved
2024-05-30 CVE Published
2024-05-31 EPSS Updated
2024-12-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (9)

URL	Tag	Source
https://git.kernel.org/stable/c/1b4ce2952b4f33e198d5e993acff0611dff1e399	Vuln. Introduced
https://git.kernel.org/stable/c/32c877191e022b55fe3a374f3d7e9fb5741c514d	Vuln. Introduced
https://git.kernel.org/stable/c/9a1a43a0e7e96911eaa00ad20b20f2edefb31d8a	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/2effe407f7563add41750fd7e03da4ea44b98099	2024-05-17
https://git.kernel.org/stable/c/7e0a322877416e8c648819a8e441cf8c790b2cce	2024-05-17
https://git.kernel.org/stable/c/9c9b32d46afab2d911897914181c488954012300	2024-05-02
https://git.kernel.org/stable/c/52ccdde16b6540abe43b6f8d8e1e1ec90b0983af	2024-04-25

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-36028	2024-11-12
https://bugzilla.redhat.com/show_bug.cgi?id=2284413	2024-11-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.1.47 < 6.1.91 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1.47 < 6.1.91"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.5 < 6.6.31 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.5 < 6.6.31"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.5 < 6.8.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.5 < 6.8.9"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.5 < 6.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.5 < 6.9"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.4.11 Search vendor "Linux" for product "Linux Kernel" and version "6.4.11"		en		Affected