Description
In the Linux kernel, the following vulnerability has been resolved: bnx2x: fix double free in bnx2x_init_firmware() error path bnx2x_init_firmware() frees bp->init_ops, bp->init_data and bp->init_ops_offsets in its error path without setting them to NULL. The cleanup function bnx2x_release_firmware() frees the same three pointers unconditionally, so if init_firmware fails and release_firmware is later called (e.g. from __bnx2x_remove or through the function state machine), all three are freed a second time. Set each pointer to NULL after kfree() in the error path so that the subsequent kfree(NULL) in bnx2x_release_firmware() is a safe no-op.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
94a78b79cb5f14c09a42522738d6694c6a1cdd20 to < 770715784b689749014ce193ef986b706fe8f51caffected94a78b79cb5f14c09a42522738d6694c6a1cdd20 to < c44e5d6c3189241d5f791bc7b1eddde6b92f802caffected94a78b79cb5f14c09a42522738d6694c6a1cdd20 to < 07d4516e3eb1fcde4a5db29eb556cdb0ebba6265affected94a78b79cb5f14c09a42522738d6694c6a1cdd20 to < ac280f6872e75df49f3004505bcddff91d9e5362affected94a78b79cb5f14c09a42522738d6694c6a1cdd20 to < dc98e727b9cfc5e19c796bf893878153f00b222baffected94a78b79cb5f14c09a42522738d6694c6a1cdd20 to < 4d36e38e48340a1ccf92a98c7a22d07a954e5aa3affected94a78b79cb5f14c09a42522738d6694c6a1cdd20 to < a142c024f07d623e2b6b25943f6c36d4b6b0b4c6affected94a78b79cb5f14c09a42522738d6694c6a1cdd20 to < d2796ffe38cb4155afe0eab23636295b096c27a5affected
Linux Linux
Default version status: affected
2.6.31affected0 to < 2.6.31unaffected5.10.270 to ≤ 5.10.*unaffected5.15.221 to ≤ 5.15.*unaffected6.1.188 to ≤ 6.1.*unaffected6.6.157 to ≤ 6.6.*unaffected6.12.109 to ≤ 6.12.*unaffected6.18.50 to ≤ 6.18.*unaffected7.2.4 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/770715784b689749014ce193ef986b706fe8f51c ↗
- https://git.kernel.org/stable/c/c44e5d6c3189241d5f791bc7b1eddde6b92f802c ↗
- https://git.kernel.org/stable/c/07d4516e3eb1fcde4a5db29eb556cdb0ebba6265 ↗
- https://git.kernel.org/stable/c/ac280f6872e75df49f3004505bcddff91d9e5362 ↗
- https://git.kernel.org/stable/c/dc98e727b9cfc5e19c796bf893878153f00b222b ↗
- https://git.kernel.org/stable/c/4d36e38e48340a1ccf92a98c7a22d07a954e5aa3 ↗
- https://git.kernel.org/stable/c/a142c024f07d623e2b6b25943f6c36d4b6b0b4c6 ↗
- https://git.kernel.org/stable/c/d2796ffe38cb4155afe0eab23636295b096c27a5 ↗