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Bug #2970

kernel 4.7: "ls -l" causes panic on UDF filesystem: "bgetvp - overlapping buffer"

Added by peeter 6 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
12/21/2016
Due date:
% Done:

0%


Description

Insert a UDF formatted cd and mount it. Invoking "ls -l" leads to panic:

% sudo mount -t udf /dev/cd0 /mnt
% ls -l /mnt

bgetvp: overlapl 0000000000091800/24576 0000000000092000 bx 0xffffffe01e70f9a0 bp 0xffffffe01e738da0
panic: bgetvp - overlapping buffer
cpuid = 0
Trace beginning at frame 0xffffffe1c2329268
panic() at panic+0x261 0xffffffff80606c5b
panic() at panic+0x261 0xffffffff80606c5b
bgetvp() at bgetvp+0x104 0xffffffff806834d2
getblk() at getblk+0x3d4 0xffffffff8066d223
breadnx() at breadnx+0x3e 0xffffffff8066d3fe
udf_readatoffset() at udf_readatoffset+0xdb 0xffffffff83576805
Debugger("panic")

---

kgdb output is attached.

kernel-debug-udf-crash.txt View (32.7 KB) peeter, 12/21/2016 02:45 AM

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