Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: acpi: nfit: vmalloc-out-of-bounds Read in acpi_nfit_ctl Fix an issue detected by syzbot with KASAN: BUG: KASAN: vmalloc-out-of-bounds in cmd_to_func drivers/acpi/nfit/ core.c:416 [inline] BUG: KASAN: vmalloc-out-of-bounds in acpi_nfit_ctl+0x20e8/0x24a0 drivers/acpi/nfit/core.c:459 The issue occurs in cmd_to_func when the call_pkg->nd_reserved2 array is accessed without verifying that call_pkg points to a buffer that is appropriately sized as a struct nd_cmd_pkg. This can lead to out-of-bounds access and undefined behavior if the buffer does not have sufficient space. To address this, a check was added in acpi_nfit_ctl() to ensure that buf is not NULL and that buf_len is less than sizeof(*call_pkg) before accessing it. This ensures safe access to the members of call_pkg, including the nd_reserved2 array.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 before 616aa5f3c86e0479bcbb81e41c08c43ff32af637; affected ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 before bbdb3307f609ec4dc9558770f464ede01fe52aed; affected ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 before 143f723e9eb4f0302ffb7adfdc7ef77eab3f68e0; affected ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 before e08dc2dc3c3f7938df0e4476fe3e6fdec5583c1d; affected ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 before 212846fafb753a48e869e2a342fc1e24048da771; affected ebe9f6f19d80d8978d16078dff3d5bd93ad8d102 before 265e98f72bac6c41a4492d3e30a8e5fd22fe0779; affected 63108f2a408abea7ecab063efa0f398da4d0d14b; affected f5878c4f084dc6b1386dad03970bb61ad5e9dc4b; affected 0c79794474895dbbc3c52225f7e9f73cfecbb7dd; affected 4.14.176 before 4.15; affected 4.19.31 before 4.20; affected 5.0.4 before 5.1 |
| Linux / Linux | affected 5.1; unaffected 0 before 5.1; unaffected 5.10.232 through 5.10.*; unaffected 5.15.175 through 5.15.*; unaffected 6.1.121 through 6.1.*; unaffected 6.6.67 through 6.6.*; unaffected 6.12.6 through 6.12.*; unaffected 6.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/616aa5f3c86e0479bcbb81e41c08c43ff32af637
- https://git.kernel.org/stable/c/bbdb3307f609ec4dc9558770f464ede01fe52aed
- https://git.kernel.org/stable/c/143f723e9eb4f0302ffb7adfdc7ef77eab3f68e0
- https://git.kernel.org/stable/c/e08dc2dc3c3f7938df0e4476fe3e6fdec5583c1d
- https://git.kernel.org/stable/c/212846fafb753a48e869e2a342fc1e24048da771
- https://git.kernel.org/stable/c/265e98f72bac6c41a4492d3e30a8e5fd22fe0779
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.