CVE-2024-56769
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
media: dvb-frontends: dib3000mb: fix uninit-value in dib3000_write_reg
In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: dib3000mb: fix uninit-value in dib3000_write_reg Syzbot reports [1] an uninitialized value issue found by KMSAN in dib3000_read_reg(). Local u8 rb[2] is used in i2c_transfer() as a read buffer; in case that call fails, the buffer may end up with some undefined values. Since no elaborate error handling is expected in dib3000_write_reg(), simply zero out rb buffer to mitigate the problem. [1] Syzkaller report dvb-usb: bulk message failed: -22 (6/0) ===================================================== BUG: KMSAN: uninit-value in dib3000mb_attach+0x2d8/0x3c0 drivers/media/dvb-frontends/dib3000mb.c:758 dib3000mb_attach+0x2d8/0x3c0 drivers/media/dvb-frontends/dib3000mb.c:758 dibusb_dib3000mb_frontend_attach+0x155/0x2f0 drivers/media/usb/dvb-usb/dibusb-mb.c:31 dvb_usb_adapter_frontend_init+0xed/0x9a0 drivers/media/usb/dvb-usb/dvb-usb-dvb.c:290 dvb_usb_adapter_init drivers/media/usb/dvb-usb/dvb-usb-init.c:90 [inline] dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:186 [inline] dvb_usb_device_init+0x25a8/0x3760 drivers/media/usb/dvb-usb/dvb-usb-init.c:310 dibusb_probe+0x46/0x250 drivers/media/usb/dvb-usb/dibusb-mb.c:110 ... Local variable rb created at: dib3000_read_reg+0x86/0x4e0 drivers/media/dvb-frontends/dib3000mb.c:54 dib3000mb_attach+0x123/0x3c0 drivers/media/dvb-frontends/dib3000mb.c:758 ...
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 74340b0a8bc60b400c7e5fe4950303aa6f914d16 | affected | git | 035772fcd631eee2756b31cb6df249c0a8d453d7 | Unavailable | None listed |
| 74340b0a8bc60b400c7e5fe4950303aa6f914d16 | affected | git | e11778189513cd7fb2edced5bd053bc18ede8418 | Unavailable | None listed |
| 74340b0a8bc60b400c7e5fe4950303aa6f914d16 | affected | git | 53106510736e734ce8b731ba871363389bfbf4c9 | Unavailable | None listed |
| 74340b0a8bc60b400c7e5fe4950303aa6f914d16 | affected | git | 3876e3a1c31a58a352c6bf5d2a90e3304445a637 | Unavailable | None listed |
| 74340b0a8bc60b400c7e5fe4950303aa6f914d16 | affected | git | 1d6de21f00293d819b5ca6dbe75ff1f3b6392140 | Unavailable | None listed |
| 74340b0a8bc60b400c7e5fe4950303aa6f914d16 | affected | git | c1197c1457bb7098cf46366e898eb52b41b6876a | Unavailable | None listed |
| 74340b0a8bc60b400c7e5fe4950303aa6f914d16 | affected | git | 2dd59fe0e19e1ab955259978082b62e5751924c7 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.19 | Unavailable | None listed |
| 5.4.289 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.233 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.176 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.123 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.69 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.8 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |