CVE-2023-52847— media: bttv: fix use after free error due to btv->timeout timer
Possible ATT&CK Techniques 1AI
T1205.008Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 162e6376ac58440beb6a2d2ee294f5d88ea58dd1< bbc3b8dd2cb7817e703f112d988e4f4728f0f2a9 | affected |
162e6376ac58440beb6a2d2ee294f5d88ea58dd1< b35fdade92c5058a5e727e233fe263b828de2c9a | affected | ||
162e6376ac58440beb6a2d2ee294f5d88ea58dd1< 2f3d9198cdae1cb079ec8652f4defacd481eab2b | affected | ||
162e6376ac58440beb6a2d2ee294f5d88ea58dd1< 51c94256a83fe4e17406c66ff3e1ad7d242d8574 | affected | ||
162e6376ac58440beb6a2d2ee294f5d88ea58dd1< 20568d06f6069cb835e05eed432edf962645d226 | affected | ||
162e6376ac58440beb6a2d2ee294f5d88ea58dd1< 1871014d6ef4812ad11ef7d838d73ce09d632267 | affected | ||
162e6376ac58440beb6a2d2ee294f5d88ea58dd1< 847599fffa528b2cdec4e21b6bf7586dad982132 | affected | ||
162e6376ac58440beb6a2d2ee294f5d88ea58dd1< bd5b50b329e850d467e7bcc07b2b6bde3752fbda | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2023-52847
Vulnerability Information
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Vulnerability Title
media: bttv: fix use after free error due to btv->timeout timer
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: bttv: fix use after free error due to btv->timeout timer There may be some a race condition between timer function bttv_irq_timeout and bttv_remove. The timer is setup in probe and there is no timer_delete operation in remove function. When it hit kfree btv, the function might still be invoked, which will cause use after free bug. This bug is found by static analysis, it may be false positive. Fix it by adding del_timer_sync invoking to the remove function. cpu0 cpu1 bttv_probe ->timer_setup ->bttv_set_dma ->mod_timer; bttv_remove ->kfree(btv); ->bttv_irq_timeout ->USE btv
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于media:bttv模块存在释放后重用漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-52847
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2023-52847 (7)
Same Patch Batch · Linux · 2024-05-21 · 361 CVEs total
| CVE-2023-52747 | IB/hfi1: Restore allocated resources on failed copyout | |
| CVE-2023-52757 | smb: client: fix potential deadlock when releasing mids | |
| CVE-2023-52755 | ksmbd: fix slab out of bounds write in smb_inherit_dacl() | |
| CVE-2023-52754 | media: imon: fix access to invalid resource for the second interface | |
| CVE-2023-52753 | drm/amd/display: Avoid NULL dereference of timing generator | |
| CVE-2023-52752 | smb: client: fix use-after-free bug in cifs_debug_data_proc_show() | |
| CVE-2023-52751 | smb: client: fix use-after-free in smb2_query_info_compound() | |
| CVE-2023-52750 | arm64: Restrict CPU_BIG_ENDIAN to GNU as or LLVM IAS 15.x or newer | |
| CVE-2023-52749 | spi: Fix null dereference on suspend | |
| CVE-2023-52748 | f2fs: avoid format-overflow warning | |
| CVE-2022-48710 | drm/radeon: fix a possible null pointer dereference | |
| CVE-2021-47432 | lib/generic-radix-tree.c: Don't overflow in peek() | |
| CVE-2023-52743 | ice: Do not use WQ_MEM_RECLAIM flag for workqueue | |
| CVE-2023-52737 | btrfs: lock the inode in shared mode before starting fiemap | |
| CVE-2023-52738 | drm/amdgpu/fence: Fix oops due to non-matching drm_sched init/fini | |
| CVE-2023-52740 | powerpc/64s/interrupt: Fix interrupt exit race with security mitigation switch | |
| CVE-2023-52739 | Fix page corruption caused by racy check in __free_pages | |
| CVE-2023-52741 | cifs: Fix use-after-free in rdata->read_into_pages() | |
| CVE-2023-52744 | RDMA/irdma: Fix potential NULL-ptr-dereference | |
| CVE-2023-52745 | IB/IPoIB: Fix legacy IPoIB due to wrong number of queues |
Showing top 20 of 361 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-64206
Bluetooth: L2CAP: cancel pending_rx_work before taking conn- - CVE-2026-64207
net/sched: dualpi2: fix GSO backlog accounting - CVE-2026-64205
i2c: i801: fix hardware state machine corruption in error pa - CVE-2026-64192
bpf: Reject BPF_MAP_TYPE_INODE_STORAGE creation if BPF LSM i - CVE-2026-64191
i2c: stub: Reject I2C block transfers with invalid length
Same vendor: Linux
- CVE-2026-64206
Bluetooth: L2CAP: cancel pending_rx_work before taking conn- - CVE-2026-64207
net/sched: dualpi2: fix GSO backlog accounting - CVE-2026-64205
i2c: i801: fix hardware state machine corruption in error pa - CVE-2026-64192
bpf: Reject BPF_MAP_TYPE_INODE_STORAGE creation if BPF LSM i - CVE-2026-64191
i2c: stub: Reject I2C block transfers with invalid length
V. Comments for CVE-2023-52847
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