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🛡️ CVE-2023-53497 — kernel

🟡 CVSS 5.5 — Medium ✅ No Known Exploit NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

media: vsp1: Replace vb2_is_streaming() with vb2_start_streaming_called()

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

media: vsp1: Replace vb2_is_streaming() with vb2_start_streaming_called()

The vsp1 driver uses the vb2_is_streaming() function in its .buf_queue()

handler to check if the .start_streaming() operation has been called,

and decide whether to just add the buffer to an internal queue, or also

trigger a hardware run. vb2_is_streaming() relies on the vb2_queue

structure's streaming field, which used to be set only after calling the

.start_streaming() operation.

Commit a10b21532574 ("media: vb2: add (un)prepare_streaming queue ops")

changed this, setting the .streaming field in vb2_core_streamon() before

enqueuing buffers to the driver and calling .start_streaming(). This

broke the vsp1 driver which now believes that .start_streaming() has

been called when it hasn't, leading to a crash:

[ 881.058705] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020

[ 881.067495] Mem abort info:

[ 881.070290] ESR = 0x0000000096000006

[ 881.074042] EC = 0x25: DABT (current EL), IL = 32 bits

[ 881.079358] SET = 0, FnV = 0

[ 881.082414] EA = 0, S1PTW = 0

[ 881.085558] FSC = 0x06: level 2 translation fault

[ 881.090439] Data abort info:

[ 881.093320] ISV = 0, ISS = 0x00000006

[ 881.097157] CM = 0, WnR = 0

[ 881.100126] user pgtable: 4k pages, 48-bit VAs, pgdp=000000004fa51000

[ 881.106573] [0000000000000020] pgd=080000004f36e003, p4d=080000004f36e003, pud=080000004f7ec003, pmd=0000000000000000

[ 881.117217] Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP

[ 881.123494] Modules linked in: rcar_fdp1 v4l2_mem2mem

[ 881.128572] CPU: 0 PID: 1271 Comm: yavta Tainted: G B 6.2.0-rc1-00023-g6c94e2e99343 #556

[ 881.138061] Hardware name: Renesas Salvator-X 2nd version board based on r8a77965 (DT)

[ 881.145981] pstate: 400000c5 (nZcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)

[ 881.152951] pc : vsp1_dl_list_add_body+0xa8/0xe0

[ 881.157580] lr : vsp1_dl_list_add_body+0x34/0xe0

[ 881.162206] sp : ffff80000c267710

[ 881.165522] x29: ffff80000c267710 x28: ffff000010938ae8 x27: ffff000013a8dd98

[ 881.172683] x26: ffff000010938098 x25: ffff000013a8dc00 x24: ffff000010ed6ba8

[ 881.179841] x23: ffff00000faa4000 x22: 0000000000000000 x21: 0000000000000020

[ 881.186998] x20: ffff00000faa4000 x19: 0000000000000000 x18: 0000000000000000

[ 881.194154] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000

[ 881.201309] x14: 0000000000000000 x13: 746e696174206c65 x12: ffff70000157043d

[ 881.208465] x11: 1ffff0000157043c x10: ffff70000157043c x9 : dfff800000000000

[ 881.215622] x8 : ffff80000ab821e7 x7 : 00008ffffea8fbc4 x6 : 0000000000000001

[ 881.222779] x5 : ffff80000ab821e0 x4 : ffff70000157043d x3 : 0000000000000020

[ 881.229936] x2 : 0000000000000020 x1 : ffff00000e4f6400 x0 : 0000000000000000

[ 881.237092] Call trace:

[ 881.239542] vsp1_dl_list_add_body+0xa8/0xe0

[ 881.243822] vsp1_video_pipeline_run+0x270/0x2a0

[ 881.248449] vsp1_video_buffer_queue+0x1c0/0x1d0

[ 881.253076] __enqueue_in_driver+0xbc/0x260

[ 881.257269] vb2_start_streaming+0x48/0x200

[ 881.261461] vb2_core_streamon+0x13c/0x280

[ 881.265565] vb2_streamon+0x3c/0x90

[ 881.269064] vsp1_video_streamon+0x2fc/0x3e0

[ 881.273344] v4l_streamon+0x50/0x70

[ 881.276844] __video_do_ioctl+0x2bc/0x5d0

[ 881.280861] video_usercopy+0x2a8/0xc80

[ 881.284704] video_ioctl2+0x20/0x40

[ 881.288201] v4l2_ioctl+0xa4/0xc0

[ 881.291525] __arm64_sys_ioctl+0xe8/0x110

[ 881.295543] invoke_syscall+0x68/0x190

[ 881.299303] el0_svc_common.constprop.0+0x88/0x170

[ 881.304105] do_el0_svc+0x4c/0xf0

[ 881.307430] el0_svc+0x4c/0xa0

[ 881.310494] el0t_64_sync_handler+0xbc/0x140

[ 881.314773] el0t_64_sync+0x190/0x194

[ 881.318450] Code: d50323bf d65f03c0 91008263 f9800071 (885f7c60)

[ 881.324551] ---[ end trace 0000000000000000 ]---

[ 881.329173] note: yavta[1271] exited with preempt_count 1

A different r

---truncated---

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: None.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

CVE-2023-53497 is recorded against 2 packages.

  • kernel (from 6.3.0 up to 6.3.2)
  • linux-kernel (from 6.3 up to 6.3.2)

Timeline and source

Published on 1 October 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2023-53497 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-10-01
Updated 2026-08-20
Modified 2026-08-12

Affected Packages

Software From version Fixed in
kernel 6.3.0 6.3.2
linux-kernel 6.3 6.3.2

Similar Threats

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