In the Linux kernel, the following vulnerability has been resolved:
e1000/e1000e: Fix leak in DMA error cleanup
If an error is encountered while mapping TX buffers, the driver should
unmap any buffers already mapped for that skb.
Because count is incremented after a successful mapping, it will always
match the correct number of unmappings needed when dma_error is reached.
Decrementing count before the while loop in dma_error causes an
off-by-one error. If any mapping was successful before an unsuccessful
mapping, exactly one DMA mapping would leak.
In these commits, a faulty while condition caused an infinite loop in
dma_error:
Commit 03b1320dfcee ("e1000e: remove use of skb_dma_map from e1000e
driver")
Commit 602c0554d7b0 ("e1000: remove use of skb_dma_map from e1000 driver")
Commit c1fa347f20f1 ("e1000/e1000e/igb/igbvf/ixgb/ixgbe: Fix tests of
unsigned in *_tx_map()") fixed the infinite loop, but introduced the
off-by-one error.
This issue may still exist in the igbvf driver, but I did not address it
in this patch.
References
Configurations
Configuration 1 (hide)
|
History
21 May 2026, 16:38
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:2.6.33:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.33:rc7:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.33:rc8:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:2.6.33:-:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* |
|
| CWE | CWE-401 | |
| References | () https://git.kernel.org/stable/c/0606c24a745bafd1be5d66c48361638cd9cad74b - Patch | |
| References | () https://git.kernel.org/stable/c/0a1fc25deabab4efce64610e3c449485c4fa8f5f - Patch | |
| References | () https://git.kernel.org/stable/c/10b5e65959e955a1c8894e0a5413944b5a70204a - Patch | |
| References | () https://git.kernel.org/stable/c/30e87ade8d678c25a8546cf38c0b498fa5cb27d3 - Patch | |
| References | () https://git.kernel.org/stable/c/519051c711dfd239ef6e4b28878efee400a035f9 - Patch | |
| References | () https://git.kernel.org/stable/c/7eaeb778bfaa3b2a804f89321c234d59c74569db - Patch | |
| References | () https://git.kernel.org/stable/c/e94eaef11142b01f77bf8ba4d0b59720b7858109 - Patch | |
| References | () https://git.kernel.org/stable/c/fa5ba9867a55e640df0dc79bf0199770fb043f03 - Patch |
08 May 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-08 15:16
Updated : 2026-05-21 16:38
NVD link : CVE-2026-43445
Mitre link : CVE-2026-43445
CVE.ORG link : CVE-2026-43445
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-401
Missing Release of Memory after Effective Lifetime