CVE-2025-40028
published 2025-10-28CVE-2025-40028: In the Linux kernel, the following vulnerability has been resolved: binder: fix double-free in dbitmap A process might fail to allocate a new bitmap when…
PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.14%
4.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
binder: fix double-free in dbitmap
A process might fail to allocate a new bitmap when trying to expand its
proc->dmap. In that case, dbitmap_grow() fails and frees the old bitmap
via dbitmap_free(). However, the driver calls dbitmap_free() again when
the same process terminates, leading to a double-free error:
BUG: KASAN: double-free in binder_proc_dec_tmpref+0x2e0/0x55c
Free of addr ffff00000b7c1420 by task kworker/9:1/209
CPU: 9 UID: 0 PID: 209 Comm: kworker/9:1 Not tainted 6.17.0-rc6-dirty #5 PREEMPT
Hardware name: linux,dummy-virt (DT)
Workqueue: events binder_deferred_func
Call trace:
kfree+0x164/0x31c
binder_proc_dec_tmpref+0x2e0/0x55c
binder_deferred_func+0xc24/0x1120
process_one_work+0x520/0xba4
[...]
Allocated by task 448:
__kmalloc_noprof+0x178/0x3c0
bitmap_zalloc+0x24/0x30
binder_open+0x14c/0xc10
[...]
Freed by task 449:
kfree+0x184/0x31c
binder_inc_ref_for_node+0xb44/0xe44
binder_transaction+0x29b4/0x7fbc
binder_thread_write+0x1708/0x442c
binder_ioctl+0x1b50/0x2900
[...]
Fix this issue by marking proc->map NULL in dbitmap_free().
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.17.6-1 (forky) | linux 6.17.6-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 15d9da3f818cae676f822a04407d3c17b53357d2 < c301ec61ce6f16e21a36b99225ca8a20c1591e10 | c301ec61ce6f16e21a36b99225ca8a20c1591e10 |
| linux | linux | >= 15d9da3f818cae676f822a04407d3c17b53357d2 < 0390633979969c54c0ce6a198d6f45cdbe2c84b1 | 0390633979969c54c0ce6a198d6f45cdbe2c84b1 |
| linux | linux | >= 15d9da3f818cae676f822a04407d3c17b53357d2 < b781e5635a3398e2b64440371233c2c5102cd6cb | b781e5635a3398e2b64440371233c2c5102cd6cb |
| linux | linux | >= 15d9da3f818cae676f822a04407d3c17b53357d2 < 3ebcd3460cad351f198c39c6edb4af519a0ed934 | 3ebcd3460cad351f198c39c6edb4af519a0ed934 |
| linux | linux_kernel | >= 0 < 6.12.57-1 | 6.12.57-1 |
| linux | linux_kernel | >= 0 < 6.17.6-1 | 6.17.6-1 |
| linux | linux_kernel | >= 0 < 6.17.0-7.7 | 6.17.0-7.7 |
| linux | linux_kernel | >= 6.11.0 < 6.12.52 | 6.12.52 |
| linux | linux_kernel | >= 6.13.0 < 6.16.12 | 6.16.12 |
| linux | linux_kernel | >= 6.17.0 < 6.17.2 | 6.17.2 |
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OSV
linux-raspi vulnerabilities
osv·2025-12-11
CVE-2025-40025 linux-raspi vulnerabilities
linux-raspi vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- x86 architecture;
- Cryptographic API;
- Android drivers;
- TTY drivers;
- F2FS file system;
- 9P file system network protocol;
(CVE-2025-40025, CVE-2025-40026, CVE-2025-40027, CVE-2025-40028,
CVE-2025-40108, CVE-2025-40109)
OSV
linux-gcp vulnerabilities
osv·2025-12-05
CVE-2025-40025 linux-gcp vulnerabilities
linux-gcp vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- x86 architecture;
- Cryptographic API;
- Android drivers;
- TTY drivers;
- F2FS file system;
- 9P file system network protocol;
(CVE-2025-40025, CVE-2025-40026, CVE-2025-40027, CVE-2025-40028,
CVE-2025-40108, CVE-2025-40109)
OSV
linux, linux-aws, linux-realtime vulnerabilities
osv·2025-12-03
CVE-2025-40025 linux, linux-aws, linux-realtime vulnerabilities
linux, linux-aws, linux-realtime vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- x86 architecture;
- Cryptographic API;
- Android drivers;
- TTY drivers;
- F2FS file system;
- 9P file system network protocol;
(CVE-2025-40025, CVE-2025-40026, CVE-2025-40027, CVE-2025-40028,
CVE-2025-40108, CVE-2025-40109)
OSV
binder: fix double-free in dbitmap
osv·2025-10-28
CVE-2025-40028 binder: fix double-free in dbitmap
binder: fix double-free in dbitmap
In the Linux kernel, the following vulnerability has been resolved:
binder: fix double-free in dbitmap
A process might fail to allocate a new bitmap when trying to expand its
proc->dmap. In that case, dbitmap_grow() fails and frees the old bitmap
via dbitmap_free(). However, the driver calls dbitmap_free() again when
the same process terminates, leading to a double-free error:
BUG: KASAN: double-free in binder_proc_dec_tmpref+0x2e0/0x55c
Free of addr ffff00000b7c1420 by task kworker/9:1/209
CPU: 9 UID: 0 PID: 209 Comm: kworker/9:1 Not tainted 6.17.0-rc6-dirty #5 PREEMPT
Hardware name: linux,dummy-virt (DT)
Workqueue: events binder_deferred_func
Call trace:
kfree+0x164/0x31c
binder_proc_dec_tmpref+0x2e0/0x55c
binder_deferred_func+0xc24/0x1120
process_
OSV
CVE-2025-40028: In the Linux kernel, the following vulnerability has been resolved: binder: fix double-free in dbitmap A process might fail to allocate a new bitmap w
osv·2025-10-28
CVE-2025-40028 CVE-2025-40028: In the Linux kernel, the following vulnerability has been resolved: binder: fix double-free in dbitmap A process might fail to allocate a new bitmap w
In the Linux kernel, the following vulnerability has been resolved: binder: fix double-free in dbitmap A process might fail to allocate a new bitmap when trying to expand its proc->dmap. In that case, dbitmap_grow() fails and frees the old bitmap via dbitmap_free(). However, the driver calls dbitmap_free() again when the same process terminates, leading to a double-free error: ================================================================== BUG: KASAN: double-free in binder_proc_dec_tmpref+0x2e0/0x55c Free of addr ffff00000b7c1420 by task kworker/9:1/209 CPU: 9 UID: 0 PID: 209 Comm: kworker/9:1 Not tainted 6.17.0-rc6-dirty #5 PREEMPT Hardware name: linux,dummy-virt (DT) Workqueue: events binder_deferred_func Call trace: kfree+0x164/0x31c binder_proc_dec_tmpref+0x2e0/0x55c binder_deferred
GHSA
GHSA-8vjm-fc8f-c7jh: In the Linux kernel, the following vulnerability has been resolved:
binder: fix double-free in dbitmap
A process might fail to allocate a new bitmap
ghsa_unreviewed·2025-10-28
CVE-2025-40028 GHSA-8vjm-fc8f-c7jh: In the Linux kernel, the following vulnerability has been resolved:
binder: fix double-free in dbitmap
A process might fail to allocate a new bitmap
In the Linux kernel, the following vulnerability has been resolved:
binder: fix double-free in dbitmap
A process might fail to allocate a new bitmap when trying to expand its
proc->dmap. In that case, dbitmap_grow() fails and frees the old bitmap
via dbitmap_free(). However, the driver calls dbitmap_free() again when
the same process terminates, leading to a double-free error:
BUG: KASAN: double-free in binder_proc_dec_tmpref+0x2e0/0x55c
Free of addr ffff00000b7c1420 by task kworker/9:1/209
CPU: 9 UID: 0 PID: 209 Comm: kworker/9:1 Not tainted 6.17.0-rc6-dirty #5 PREEMPT
Hardware name: linux,dummy-virt (DT)
Workqueue: events binder_deferred_func
Call trace:
kfree+0x164/0x31c
binder_proc_dec_tmpref+0x2e0/0x55c
binder_deferred_func+0xc24/0x1120
process_one_work+0x520/0xba4
[...]
Allocate
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2025-12-11
CVE-2025-40026 Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- x86 architecture;
- Cryptographic API;
- Android drivers;
- TTY drivers;
- F2FS file system;
- 9P file system network protocol;
(CVE-2025-40025, CVE-2025-40026, CVE-2025-40027, CVE-2025-40028,
CVE-2025-40108, CVE-2025-40109)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third par
Ubuntu
Linux kernel (GCP) vulnerabilities
vendor_ubuntu·2025-12-05
CVE-2025-40026 Linux kernel (GCP) vulnerabilities
Title: Linux kernel (GCP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- x86 architecture;
- Cryptographic API;
- Android drivers;
- TTY drivers;
- F2FS file system;
- 9P file system network protocol;
(CVE-2025-40025, CVE-2025-40026, CVE-2025-40027, CVE-2025-40028,
CVE-2025-40108, CVE-2025-40109)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-12-03
CVE-2025-40025 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- x86 architecture;
- Cryptographic API;
- Android drivers;
- TTY drivers;
- F2FS file system;
- 9P file system network protocol;
(CVE-2025-40025, CVE-2025-40026, CVE-2025-40027, CVE-2025-40028,
CVE-2025-40108, CVE-2025-40109)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modul
Red Hat
kernel: binder: fix double-free in dbitmap
vendor_redhat·2025-10-28
CVE-2025-40028 kernel: binder: fix double-free in dbitmap
kernel: binder: fix double-free in dbitmap
In the Linux kernel, the following vulnerability has been resolved:
binder: fix double-free in dbitmap
A process might fail to allocate a new bitmap when trying to expand its
proc->dmap. In that case, dbitmap_grow() fails and frees the old bitmap
via dbitmap_free(). However, the driver calls dbitmap_free() again when
the same process terminates, leading to a double-free error:
BUG: KASAN: double-free in binder_proc_dec_tmpref+0x2e0/0x55c
Free of addr ffff00000b7c1420 by task kworker/9:1/209
CPU: 9 UID: 0 PID: 209 Comm: kworker/9:1 Not tainted 6.17.0-rc6-dirty #5 PREEMPT
Hardware name: linux,dummy-virt (DT)
Workqueue: events binder_deferred_func
Call trace:
kfree+0x164/0x31c
binder_proc_dec_tmpref+0x2e0/0x55c
binder_deferred_func+0xc24/0x1120
proc
Debian
CVE-2025-40028: linux - In the Linux kernel, the following vulnerability has been resolved: binder: fix...
vendor_debian·2025
CVE-2025-40028 [LOW] CVE-2025-40028: linux - In the Linux kernel, the following vulnerability has been resolved: binder: fix...
In the Linux kernel, the following vulnerability has been resolved: binder: fix double-free in dbitmap A process might fail to allocate a new bitmap when trying to expand its proc->dmap. In that case, dbitmap_grow() fails and frees the old bitmap via dbitmap_free(). However, the driver calls dbitmap_free() again when the same process terminates, leading to a double-free error: ================================================================== BUG: KASAN: double-free in binder_proc_dec_tmpref+0x2e0/0x55c Free of addr ffff00000b7c1420 by task kworker/9:1/209 CPU: 9 UID: 0 PID: 209 Comm: kworker/9:1 Not tainted 6.17.0-rc6-dirty #5 PREEMPT Hardware name: linux,dummy-virt (DT) Workqueue: events binder_deferred_func Call trace: kfree+0x164/0x31c binder_proc_dec_tmpref+0x2e0/0x55c binder_deferred
No detection rules found.
No public exploits indexed.
2025-10-28
Published