sfc: fix TX channel offset when using legacy interrupts
In the Linux kernel, the following vulnerability has been resolved:
sfc: fix TX channel offset when using legacy interrupts
In legacy interrupt mode the tx_channel_offset was hardcoded to 1, but
that's not correct if efx_sepparate_tx_channels is false. In that case,
the offset is 0 because the tx queues are in the single existing channel
at index 0, together with the rx queue.
Without this fix, as soon as you try to send any traffic, it tries to
get the tx queues from an uninitialized channel getting these errors:
WARNING: CPU: 1 PID: 0 at drivers/net/ethernet/sfc/tx.c:540 efx_hard_start_xmit+0x12e/0x170 [sfc]
[...]
RIP: 0010:efx_hard_start_xmit+0x12e/0x170 [sfc]
[...]
Call Trace:
dev_hard_start_xmit+0xd7/0x230
sch_direct_xmit+0x9f/0x360
__dev_queue_xmit+0x890/0xa40
[...]
BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
[...]
RIP: 0010:efx_hard_start_xmit+0x153/0x170 [sfc]
[...]
Call Trace:
dev_hard_start_xmit+0xd7/0x230
sch_direct_xmit+0x9f/0x360
__dev_queue_xmit+0x890/0xa40
[...]
CVE 정보
EPSS
EPSS는 취약점이 악용될 가능성을 예측하는 점수 모델입니다.
EPSS 점수
EPSS 모델은 0과 1(0~100%) 사이의 확률 점수를 생성합니다. 점수가 높을수록 취약점이 악용될 가능성이 높습니다.
날짜
EPSS V0
EPSS V1
EPSS V2 (> 2022-02-04)
EPSS V3 (> 2025-03-07)
EPSS V4 (> 2025-03-17)
2024-04-29
–
–
–
0.05%
–
2024-06-02
–
–
–
0.05%
–
2024-06-23
–
–
–
0.05%
–
2024-10-27
–
–
–
0.05%
–
2024-12-15
–
–
–
0.05%
–
2024-12-22
–
–
–
0.05%
–
2025-01-12
–
–
–
0.05%
–
2025-01-19
–
–
–
0.05%
–
2025-03-18
–
–
–
–
0.05%
2025-03-30
–
–
–
–
0.05%
2025-04-10
–
–
–
–
0.05%
2025-04-12
–
–
–
–
0.05%
2025-04-15
–
–
–
–
0.05%
2025-05-01
–
–
–
–
0.05%
2025-05-05
–
–
–
–
0.05%
2025-05-09
–
–
–
–
0.05%
2025-05-11
–
–
–
–
0.05%
2025-05-14
–
–
–
–
0.05%
2025-05-15
–
–
–
–
0.05%
2025-05-16
–
–
–
–
0.05%
2025-05-18
–
–
–
–
0.05%
2025-05-21
–
–
–
–
0.05%
2025-05-24
–
–
–
–
0.05%
2025-06-06
–
–
–
–
0.01%
2025-09-08
–
–
–
–
0.02%
2025-11-18
–
–
–
–
0.09%
2025-11-21
–
–
–
–
0.02%
2026-03-29
–
–
–
–
0.02%
2026-04-02
–
–
–
–
0.02%
EPSS 백분위수
백분위수는 EPSS 점수에 따라 CVE의 순위를 매기는 데 사용됩니다. 예를 들어 EPSS 점수 기준 95번째 백분위수의 CVE는 다른 CVE의 95%보다 악용될 가능성이 높습니다.